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Images of 'Dust Emission' found, 161

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Dark stars and nebulae in Sagittarius and Ophiuchus - Dark Nebulae in Sagittarius and Scorpius - Dark nebulae on the edge of the Pipe nebula. This complex of dust clouds that block the light of the stars is located between the Sagittarius and the Scorpio, near the center of our lactee road. Also visible, the nebulae emitted from the Lagoon, Trifide, and Omega. Image obtained with Canon 20Da, 50 mm f/1.4, 6 x 5 min ISO 1600 poses. This amazing complex of dark nebulae and dust in Sagittarius and Ophiuchus lies near the central bulge of our own galaxy, the Milky Way. Dark nebulae are non - luminous clouds of obscuring matter and dust which block the light from stars behind them. Many of the dark nebulae seen here are listed in E.E. Barnard's catalog of dark nebulae and are given a “” B” designation, such as B72, the Snake Nebula. Almost the entire complex of dark nebulae seen on the right hand side of the image make up the “Dark Horse and Rider””. The Pipe Nebula, Lynds Dark Nebula 1773,

Dark stars and nebulae in Sagittarius and Ophiuchus - Dark Nebulae in Sagittarius and Scorpius - Dark nebulae on the edge of the Pipe nebula. This complex of dust clouds that block the light of the stars is located between the Sagittarius and the Scorpio, near the center of our lactee road. Also visible, the nebulae emitted from the Lagoon, Trifide, and Omega. Image obtained with Canon 20Da, 50 mm f/1.4, 6 x 5 min ISO 1600 poses. This amazing complex of dark nebulae and dust in Sagittarius and Ophiuchus lies near the central bulge of our own galaxy, the Milky Way. Dark nebulae are non - luminous clouds of obscuring matter and dust which block the light from stars behind them. Many of the dark nebulae seen here are listed in E.E. Barnard's catalog of dark nebulae and are given a “” B” designation, such as B72, the Snake Nebula. Almost the entire complex of dark nebulae seen on the right hand side of the image make up the “Dark Horse and Rider””. The Pipe Nebula, Lynds Dark Nebula 1773,

Jerry Lodriguss

PIX4621393

Hidden behind a shroud of dust in the constellation Cygnus is an exceptionally bright source of radio emission called DR21. Visible light images reveal no trace of what is happening in this region because of heavy dust obscuration. Spitzer Space Telescope.

Hidden behind a shroud of dust in the constellation Cygnus is an exceptionally bright source of radio emission called DR21. Visible light images reveal no trace of what is happening in this region because of heavy dust obscuration. Spitzer Space Telescope.

UIG867061

Hidden behind a shroud of dust in the constellation Cygnus is an exceptionally bright source of radio emission called DR21. Visible light images reveal no trace of what is happening in this region because of heavy dust obscuration. Spitzer Space Telescope.

Hidden behind a shroud of dust in the constellation Cygnus is an exceptionally bright source of radio emission called DR21. Visible light images reveal no trace of what is happening in this region because of heavy dust obscuration. Spitzer Space Telescope.

UIG867062

Hidden behind a shroud of dust in the constellation Cygnus is an exceptionally bright source of radio emission called DR21. Visible light images reveal no trace of what is happening in this region because of heavy dust obscuration. Spitzer Space Telescope.

Hidden behind a shroud of dust in the constellation Cygnus is an exceptionally bright source of radio emission called DR21. Visible light images reveal no trace of what is happening in this region because of heavy dust obscuration. Spitzer Space Telescope.

UIG867060

Cocoon Nebula (IC 5146) in Swan - Cocoon Nebula - IC 5146 - in Cygnus - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. This complex mass of molecular hydrogen and dust, located 4,000 light years from earth, glows red by emitting light, shines blue by reflecting light and exhibits a pattern of dark lanes that result when dust absorbs light. Much of the light seen in the main part of this nebula is generated by the massive bright star near it's center. The Cocoon is a stellar nursery containing a relatively young open cluster of stars with several individual constituents that are newly formed. Wide angle, long exposure photographs reveals the nebula to be very extensive - essentially a vast river of interstellar dust

Cocoon Nebula (IC 5146) in Swan - Cocoon Nebula - IC 5146 - in Cygnus - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. This complex mass of molecular hydrogen and dust, located 4,000 light years from earth, glows red by emitting light, shines blue by reflecting light and exhibits a pattern of dark lanes that result when dust absorbs light. Much of the light seen in the main part of this nebula is generated by the massive bright star near it's center. The Cocoon is a stellar nursery containing a relatively young open cluster of stars with several individual constituents that are newly formed. Wide angle, long exposure photographs reveals the nebula to be very extensive - essentially a vast river of interstellar dust

R. Gendler

PIX4622743

Nebula NGC 6559 in Sagittarius - Nebula NGC 6559 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Complex of red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. NGC 6559 is located 5000 light years away in constellation of Sagittarius. Image taken with a 24 - inch telescope

Nebula NGC 6559 in Sagittarius - Nebula NGC 6559 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Complex of red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. NGC 6559 is located 5000 light years away in constellation of Sagittarius. Image taken with a 24 - inch telescope

Adam Block

PIX4619882

Nebula near the star S Mon in Unicorn - Fox Fur nebula in Monoceros - Nebula around the bright star S Monocerotis in the constellation Unicorn. S My belongs to a young cluster of stars located about 2600 years from Earth. The region around the 4.7 magnitude star S Mon is a fascinating mixture of red fluorescent hydrogen and dark, obscuring dust lanes. Some dust patches are close enough to bright stars to reflect light from them; these appear blue for the same reason that the day - time sky is blue - because some of the interstellar particles preferentially scatter blue light. The dust is mixed with gas and this affects the appearance of the emission nebulae, giving some of the faintest a curious 'fox fur' texture in this enhanced photograph. S Mon is part of a young open cluster of stars named NGC 2264 located about 2600 light years away, just north of the Cone nebula

Nebula near the star S Mon in Unicorn - Fox Fur nebula in Monoceros - Nebula around the bright star S Monocerotis in the constellation Unicorn. S My belongs to a young cluster of stars located about 2600 years from Earth. The region around the 4.7 magnitude star S Mon is a fascinating mixture of red fluorescent hydrogen and dark, obscuring dust lanes. Some dust patches are close enough to bright stars to reflect light from them; these appear blue for the same reason that the day - time sky is blue - because some of the interstellar particles preferentially scatter blue light. The dust is mixed with gas and this affects the appearance of the emission nebulae, giving some of the faintest a curious 'fox fur' texture in this enhanced photograph. S Mon is part of a young open cluster of stars named NGC 2264 located about 2600 light years away, just north of the Cone nebula

PIX4618692

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Image made with Siding Spring's 3.9m telescope. Our view towards the centre of the Galaxy is obscured by extensive clouds of interstellar dust in the direction of the constellation of Sagittarius. The large - scale, patchy nature of the obscuration can be seen with the unaided eye and it is evident on smaller scales from the uneven distribution of background stars across this picture. Light from bright stars within the dust produces the two blue reflection nebulae (NGC 6589 and 6590), and these stars are members of a loose open cluster of stars, NGC 6595 (Sharpless 37) which is at a distance of about 5,900 light years. A large, almost transparent cloud of hydrogen, mixed with traces of dust, glows with a characteristic magenta hue over most of the field of view. This is known as IC 1283, 1284 and

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Image made with Siding Spring's 3.9m telescope. Our view towards the centre of the Galaxy is obscured by extensive clouds of interstellar dust in the direction of the constellation of Sagittarius. The large - scale, patchy nature of the obscuration can be seen with the unaided eye and it is evident on smaller scales from the uneven distribution of background stars across this picture. Light from bright stars within the dust produces the two blue reflection nebulae (NGC 6589 and 6590), and these stars are members of a loose open cluster of stars, NGC 6595 (Sharpless 37) which is at a distance of about 5,900 light years. A large, almost transparent cloud of hydrogen, mixed with traces of dust, glows with a characteristic magenta hue over most of the field of view. This is known as IC 1283, 1284 and

PIX4619926

Nebula IC 2948 in Centaur - Bok's cells - A group of Bok globules in IC 2948 - View of a detail of nebula IC 2948 in the center Centaur on Bok's cells. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. The dark spots in the picture are not photographic defects but an unusual type of interstellar cloud known as a Bok globule. Bok globules, named after astronomer Bart Bok who studied them extensively, are small dark clouds made of gas and dust that are typically condensing to form a star or stars. These Bok globules are located at a distance of about 6000 light years near IC 2944 cluster in the emission nebula IC 2948

Nebula IC 2948 in Centaur - Bok's cells - A group of Bok globules in IC 2948 - View of a detail of nebula IC 2948 in the center Centaur on Bok's cells. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. The dark spots in the picture are not photographic defects but an unusual type of interstellar cloud known as a Bok globule. Bok globules, named after astronomer Bart Bok who studied them extensively, are small dark clouds made of gas and dust that are typically condensing to form a star or stars. These Bok globules are located at a distance of about 6000 light years near IC 2944 cluster in the emission nebula IC 2948

PIX4622532

Nebula Omega (M17) in Sagittarius - The Omega Nebula (M17) in the constellation Sagittarius - View of the nebula Omega (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. The Omega Nebula, Messier object 17 (M17), NGC 6618, in the constellation Sagittarius is a bright nebula, criss - crossed by clouds and lanes of opaque dust and gas. It is also known as the Swan Nebula and the Horseshoe Nebula. At a distance of 5700 light - years, M17 is also a source of radio noise

Nebula Omega (M17) in Sagittarius - The Omega Nebula (M17) in the constellation Sagittarius - View of the nebula Omega (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. The Omega Nebula, Messier object 17 (M17), NGC 6618, in the constellation Sagittarius is a bright nebula, criss - crossed by clouds and lanes of opaque dust and gas. It is also known as the Swan Nebula and the Horseshoe Nebula. At a distance of 5700 light - years, M17 is also a source of radio noise

R. Gendler

PIX4620089

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Image made with Siding Spring's 3.9m telescope. Our view towards the centre of the Galaxy is obscured by extensive clouds of interstellar dust in the direction of the constellation of Sagittarius. The large - scale, patchy nature of the obscuration can be seen with the unaided eye and it is evident on smaller scales from the uneven distribution of background stars across this picture. Light from bright stars within the dust produces the two blue reflection nebulae (NGC 6589 and 6590), and these stars are members of a loose open cluster of stars, NGC 6595 (Sharpless 37) which is at a distance of about 5,900 light years. A large, almost transparent cloud of hydrogen, mixed with traces of dust, glows with a characteristic magenta hue over most of the field of view. This is known as IC 1283, 1284 and

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Image made with Siding Spring's 3.9m telescope. Our view towards the centre of the Galaxy is obscured by extensive clouds of interstellar dust in the direction of the constellation of Sagittarius. The large - scale, patchy nature of the obscuration can be seen with the unaided eye and it is evident on smaller scales from the uneven distribution of background stars across this picture. Light from bright stars within the dust produces the two blue reflection nebulae (NGC 6589 and 6590), and these stars are members of a loose open cluster of stars, NGC 6595 (Sharpless 37) which is at a distance of about 5,900 light years. A large, almost transparent cloud of hydrogen, mixed with traces of dust, glows with a characteristic magenta hue over most of the field of view. This is known as IC 1283, 1284 and

PIX4619870

The Omega nebula (M17) seen in infrared - M17 nebula in infrared - The Omega nebula (M17) seen in infrared by the Spitzer space telescope. M17 is a star-forming region about 6000 light years ago in the constellation Sagittarius. In the center of the nebula is a group of massive stars. The dust appears in red, the hot gas in green, the regions or this gas and the dust mixes in white. Nasa's Spitzer Space Telescope has captured an infrared view of the star - making cloud called M17, or the Swan nebula. The cloud, located about 6,000 light - years away in the constellation Sagittarius, is dominated by a central group of massive stars - - the most massive stars in the region. These central stars give off intense flows of expanding gas, which rush like rivers against dense piles of material, carving out the deep pocket at center of the picture. Winds from the region's other massive stars push back against these oncoming rivers, creating bow shocks like those that pile up in front of speedin

The Omega nebula (M17) seen in infrared - M17 nebula in infrared - The Omega nebula (M17) seen in infrared by the Spitzer space telescope. M17 is a star-forming region about 6000 light years ago in the constellation Sagittarius. In the center of the nebula is a group of massive stars. The dust appears in red, the hot gas in green, the regions or this gas and the dust mixes in white. Nasa's Spitzer Space Telescope has captured an infrared view of the star - making cloud called M17, or the Swan nebula. The cloud, located about 6,000 light - years away in the constellation Sagittarius, is dominated by a central group of massive stars - - the most massive stars in the region. These central stars give off intense flows of expanding gas, which rush like rivers against dense piles of material, carving out the deep pocket at center of the picture. Winds from the region's other massive stars push back against these oncoming rivers, creating bow shocks like those that pile up in front of speedin

PIX4620190

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by the Hubble Space Telescope (HST). The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass”” shape

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by the Hubble Space Telescope (HST). The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass”” shape

PIX4621001

North America Nebula in the Swan - The North America Nebula (NGC 7000) is a large emission nebula located near the star Deneb in the constellation Swan. NGC 7000 is the North America Nebula in Cygnus. Located just 3 degrees east-southeast of Deneb, the brightest star in Cygnus, this large 2 x 3 degree area of red hydrogen-alpha emission nebulosity is a complex star-forming region choked with gas and obscuring dust. It is located about 1,500 light years away. Image taken with a skywatcher 80 ED telescope with a Canon DSLR modified for astrophotography

North America Nebula in the Swan - The North America Nebula (NGC 7000) is a large emission nebula located near the star Deneb in the constellation Swan. NGC 7000 is the North America Nebula in Cygnus. Located just 3 degrees east-southeast of Deneb, the brightest star in Cygnus, this large 2 x 3 degree area of red hydrogen-alpha emission nebulosity is a complex star-forming region choked with gas and obscuring dust. It is located about 1,500 light years away. Image taken with a skywatcher 80 ED telescope with a Canon DSLR modified for astrophotography

Alex Conu

PIX4580146

Nebula NGC 281 in Cassiopee - Nebula NGC 281 in Cassiopeia - NGC 281 is a star-forming region about 10,000 light years away from Earth in the constellation Cassiopee. At the center of this nebula is the cluster of stars IC 1590 whose stars are only a few million years old. NGC 281 is a busy workshop of star formation. Prominent features include a small open cluster of stars, a diffuse red - glowing emission nebula, large lanes of obscuring gas and dust, and dense knots of dust and gas in which stars may still be forming. The open cluster of stars IC 1590 visible around the center has formed only in the last few million years. The brightest member of this cluster is actually a multiple - star system shining light that helps ionize the nebula's gas, causing the red glow visible throughout. The lanes of dust visible below the center are likely homes of future star formation. The entire NGC 281 system lies about 10 thousand light years distant

Nebula NGC 281 in Cassiopee - Nebula NGC 281 in Cassiopeia - NGC 281 is a star-forming region about 10,000 light years away from Earth in the constellation Cassiopee. At the center of this nebula is the cluster of stars IC 1590 whose stars are only a few million years old. NGC 281 is a busy workshop of star formation. Prominent features include a small open cluster of stars, a diffuse red - glowing emission nebula, large lanes of obscuring gas and dust, and dense knots of dust and gas in which stars may still be forming. The open cluster of stars IC 1590 visible around the center has formed only in the last few million years. The brightest member of this cluster is actually a multiple - star system shining light that helps ionize the nebula's gas, causing the red glow visible throughout. The lanes of dust visible below the center are likely homes of future star formation. The entire NGC 281 system lies about 10 thousand light years distant

Jerry Lodriguss

PIX4617441

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the center of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Vast clouds of hydrogen mixed with tiny dust grains are distributed throughout the Milky Way. The hydrogen can only be seen at visible wavelengths when it is illuminated by very hot stars. The light from these stars is sufficiently rich in ultraviolet light to cause the gas to glow with its characteristic red colour. In most cases, such as here, the hot stars formed recently from the hydrogen cloud. The stars found at the heart of the Trifid Nebula are here seen associated with dust lanes which are silhouetted against the glowing background. This nebula is in the constellation of Sagittarius at a distance between 5000 and 10,000 light years

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the center of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Vast clouds of hydrogen mixed with tiny dust grains are distributed throughout the Milky Way. The hydrogen can only be seen at visible wavelengths when it is illuminated by very hot stars. The light from these stars is sufficiently rich in ultraviolet light to cause the gas to glow with its characteristic red colour. In most cases, such as here, the hot stars formed recently from the hydrogen cloud. The stars found at the heart of the Trifid Nebula are here seen associated with dust lanes which are silhouetted against the glowing background. This nebula is in the constellation of Sagittarius at a distance between 5000 and 10,000 light years

PIX4619647

Nebula NGC 6334 in the Scorpion - The 'reddened' nebulosity of NGC 6334 - The nebula NGC 6334 is located about 5500 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The star - forming nebula NGC 6334 shows no evidence of a blue component in their colour - indeed, the blue - light plate used in these 3 - colour pictures had no nebulous image at all - nor is there any obvious sign of the bright blue stars normally found in these objects. They are excellent examples of the phenomenon known as 'interstellar reddening', the selective removal of blue light by minute particles of dust in the line of sight. This accounts for both the ruddy hue and apparent absence of blue stars. The hot stars are present but only some of the red part of their light is seen so they are not conspicuous. This nebula is quite nearby (5500 light years) but located close to the Galactic plane and are buried in the dust of the Milky Way. Careful measurement of the colour

Nebula NGC 6334 in the Scorpion - The 'reddened' nebulosity of NGC 6334 - The nebula NGC 6334 is located about 5500 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The star - forming nebula NGC 6334 shows no evidence of a blue component in their colour - indeed, the blue - light plate used in these 3 - colour pictures had no nebulous image at all - nor is there any obvious sign of the bright blue stars normally found in these objects. They are excellent examples of the phenomenon known as 'interstellar reddening', the selective removal of blue light by minute particles of dust in the line of sight. This accounts for both the ruddy hue and apparent absence of blue stars. The hot stars are present but only some of the red part of their light is seen so they are not conspicuous. This nebula is quite nearby (5500 light years) but located close to the Galactic plane and are buried in the dust of the Milky Way. Careful measurement of the colour

PIX4619360

Nebula LDN 988 in the Swan - LDN 988 nebula in Cygnus - Region around the dark nebula LDN 988 in the Swan. Area around the dark nebula LDN 988 with two blue reflection nebulae GN 21.01.3 and LBN 409. The emission nebula in the upper right of the image near the open cluster NGC 7031 seems uncataloged. Another interesting object is [C86] L988a. This is a looped nebula in LDN988. Sh2 - 120 and 121 are the two small HII regions left of center. Faint dust makes some of the background appear blue from reflection

Nebula LDN 988 in the Swan - LDN 988 nebula in Cygnus - Region around the dark nebula LDN 988 in the Swan. Area around the dark nebula LDN 988 with two blue reflection nebulae GN 21.01.3 and LBN 409. The emission nebula in the upper right of the image near the open cluster NGC 7031 seems uncataloged. Another interesting object is [C86] L988a. This is a looped nebula in LDN988. Sh2 - 120 and 121 are the two small HII regions left of center. Faint dust makes some of the background appear blue from reflection

Tom Davis

PIX4621610

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

Adam Block

PIX4620160

Omega nebula (M17) in Sagittarius - The Omega Nebula (M17) in Sagittarius - View of the Omega nebula (M17/ngc 6618) located in the constellation Sagittarius at a distance of 5700 light years

Omega nebula (M17) in Sagittarius - The Omega Nebula (M17) in Sagittarius - View of the Omega nebula (M17/ngc 6618) located in the constellation Sagittarius at a distance of 5700 light years

PIX4620086

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Measuring some forty light years across, this nebula contains enough gas to make many thousands of suns. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the object its name. Trifid is located in Sagittarius constellation between 5000 and 10 000 light - years away

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Measuring some forty light years across, this nebula contains enough gas to make many thousands of suns. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the object its name. Trifid is located in Sagittarius constellation between 5000 and 10 000 light - years away

R. Gendler

PIX4619498

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Measuring some forty light years across, this nebula contains enough gas to make many thousands of suns. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the object its name. Trifid is located in Sagittarius constellation between 5000 and 10 000 light - years away

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Measuring some forty light years across, this nebula contains enough gas to make many thousands of suns. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the object its name. Trifid is located in Sagittarius constellation between 5000 and 10 000 light - years away

R. Jay GaBany

PIX4619560

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. Image obtained by the VST (VLT Survey Telescope) in Chile in June 2011. The first released VST image shows the spectacular star - forming region Messier 17, also known as the Omega Nebula or the Swan Nebula, as it has never been seen before. This vast region of gas, dust and hot young stars lies in the heart of the Milky Way in the constellation of Sagittarius (The Archer). The VST field of view is so large that the entire nebula, including its fainter outer parts, is captured - - and retains its superb sharpness across the entire image

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. Image obtained by the VST (VLT Survey Telescope) in Chile in June 2011. The first released VST image shows the spectacular star - forming region Messier 17, also known as the Omega Nebula or the Swan Nebula, as it has never been seen before. This vast region of gas, dust and hot young stars lies in the heart of the Milky Way in the constellation of Sagittarius (The Archer). The VST field of view is so large that the entire nebula, including its fainter outer parts, is captured - - and retains its superb sharpness across the entire image

PIX4620192

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Mosaic of images obtained with a telescope of 35 cm, 22 hours of poses. This rich nebula complex is located near the center of the galaxy where dust is ubiquitous and often partially obscures the view at visible wavelengths. The two bright blue clouds are NGC 6589 and NGC 6590. The clouds represent scattered starlight from two imbedded young blue stars. The two bright stars are part of a loose cluster known as NGC 6595. The diffuse magenta cloud is a complex HII region which absorbs the energy from the nearby bright stars and releases it in the visible red light of excited hydrogen. The HII clouds are known as IC 1283, IC 1284 and IC 4700. This region of our galaxy is rich with dust clouds and young stars which together produce the stunning reflection nebulae we see in the image. Mosaic of images

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Mosaic of images obtained with a telescope of 35 cm, 22 hours of poses. This rich nebula complex is located near the center of the galaxy where dust is ubiquitous and often partially obscures the view at visible wavelengths. The two bright blue clouds are NGC 6589 and NGC 6590. The clouds represent scattered starlight from two imbedded young blue stars. The two bright stars are part of a loose cluster known as NGC 6595. The diffuse magenta cloud is a complex HII region which absorbs the energy from the nearby bright stars and releases it in the visible red light of excited hydrogen. The HII clouds are known as IC 1283, IC 1284 and IC 4700. This region of our galaxy is rich with dust clouds and young stars which together produce the stunning reflection nebulae we see in the image. Mosaic of images

R. Gendler

PIX4619883

Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula (IC 5146) in Cygnus - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. This star-forming region is illuminated by massive young stars. This complex mass of molecular hydrogen and dust, located 4,000 light years from earth, glows red by emitting light, shines blue by reflecting light and exhibits a pattern of dark lanes that result when dust absorbs light. Much of the light seen in the main part of this nebula is generated by the massive bright star near it's center. The Cocoon is a stellar nursery containing a relatively young open cluster of stars with several individual constituents that are newly formed

Cocoon Nebula (IC 5146) in the Swan - Cocoon Nebula (IC 5146) in Cygnus - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. This star-forming region is illuminated by massive young stars. This complex mass of molecular hydrogen and dust, located 4,000 light years from earth, glows red by emitting light, shines blue by reflecting light and exhibits a pattern of dark lanes that result when dust absorbs light. Much of the light seen in the main part of this nebula is generated by the massive bright star near it's center. The Cocoon is a stellar nursery containing a relatively young open cluster of stars with several individual constituents that are newly formed

Adam Block

PIX4622748

Cocon Nebula (IC 5146) in the Swan - Cocoon Nebula IC5146 - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. This star-forming region is illuminated by massive young stars. This complex mass of molecular hydrogen and dust, located 4,000 light years from earth, glows red by emitting light, shines blue by reflecting light and exhibits a pattern of dark lanes that result when dust absorbs light. Much of the light seen in the main part of this nebula is generated by the massive bright star near it's center. The Cocoon is a stellar nursery containing a relatively young open cluster of stars with several individual constituents that are newly formed

Cocon Nebula (IC 5146) in the Swan - Cocoon Nebula IC5146 - The Cocon Nebula, IC 5146, is an emission nebula located about 4000 years from Earth in the constellation of Swan. This star-forming region is illuminated by massive young stars. This complex mass of molecular hydrogen and dust, located 4,000 light years from earth, glows red by emitting light, shines blue by reflecting light and exhibits a pattern of dark lanes that result when dust absorbs light. Much of the light seen in the main part of this nebula is generated by the massive bright star near it's center. The Cocoon is a stellar nursery containing a relatively young open cluster of stars with several individual constituents that are newly formed

PIX4622764

Orion's Nebula - The Great Nebula in Orion - Located 1500 light years from Earth, Orion's Nebula is the closest region to the formation of stars of the Sun. In its heart, a group of young stars called Orion's Trapeze. To the eye, the nebula appears as a misty patch around the central star of the line of three which form Orion's sword. The central group of stars is the Trapezium cluster and these stars are responsible for producing the nebula. It is the high concentration of dust and gas in this part of the sky which has resulted in the formation of the stars, so the Orion nebula is no random association of bright stars and dusty gas. At a distance of 1500 light years, the Orion nebula is the nearest star-forming region to the Sun

Orion's Nebula - The Great Nebula in Orion - Located 1500 light years from Earth, Orion's Nebula is the closest region to the formation of stars of the Sun. In its heart, a group of young stars called Orion's Trapeze. To the eye, the nebula appears as a misty patch around the central star of the line of three which form Orion's sword. The central group of stars is the Trapezium cluster and these stars are responsible for producing the nebula. It is the high concentration of dust and gas in this part of the sky which has resulted in the formation of the stars, so the Orion nebula is no random association of bright stars and dusty gas. At a distance of 1500 light years, the Orion nebula is the nearest star-forming region to the Sun

Alex Conu

PIX4580124

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Measuring some forty light years across, this nebula contains enough gas to make many thousands of suns. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the object its name. Trifid is located in Sagittarius constellation between 5000 and 10 000 light - years away

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Measuring some forty light years across, this nebula contains enough gas to make many thousands of suns. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the object its name. Trifid is located in Sagittarius constellation between 5000 and 10 000 light - years away

R. Jay GaBany

PIX4619512

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

PIX4620153

Nebula M78 in Orion - M78 nebula in Orion - The nebula M78 (NGC 2068) is located about 1300 years - light from Earth and extends over 4 years - light. M78, (NGC2068) is part of the Orion complex, a large region of star - forming gas and dust centred around M42 and M43. It is the brightest diffuse reflection nebula in the sky. M78 is some 1600 light - years away and around 4 light - years across

Nebula M78 in Orion - M78 nebula in Orion - The nebula M78 (NGC 2068) is located about 1300 years - light from Earth and extends over 4 years - light. M78, (NGC2068) is part of the Orion complex, a large region of star - forming gas and dust centred around M42 and M43. It is the brightest diffuse reflection nebula in the sky. M78 is some 1600 light - years away and around 4 light - years across

Stephane Guisard

PIX4618137

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in light by the space telescope Hubble. The image shows a column of gases and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in visible light, the image shows the tip of the three - light - year - long pillar, bathed in the glow of light from hot, massive stars off the top of the image. Scorching radiation and fast winds (streams of charged particles) from these stars are sculpting the pillar and causing new stars to form within it. Streamers of gas and dust can be seen flowing off the top of the structure. Hubble's Wi

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in light by the space telescope Hubble. The image shows a column of gases and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in visible light, the image shows the tip of the three - light - year - long pillar, bathed in the glow of light from hot, massive stars off the top of the image. Scorching radiation and fast winds (streams of charged particles) from these stars are sculpting the pillar and causing new stars to form within it. Streamers of gas and dust can be seen flowing off the top of the structure. Hubble's Wi

PIX4619089

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon Nebula, M8, NGC 6523 - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 6500 years - light, it extends over a diameter of 60 AL. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The irregular distribution of light in this beautiful part of the sky is due mainly to clouds of dust that dim the light of vast clouds of stars that make Sagittarius one of the brightest parts of the Milky Way. The Lagoon nebula is an illuminated part of such a dark ('molecule') cloud and it reveals the dust as dark lanes and globules silhouetted against the luminous gas. Within the nebula is the scattered young star cluster NGC 6530, recently formed from this material, though the centre of star - forming activity has now shifted westwards from the cluster to the brightest part of the nebula, around the tiny Hourglass Nebula

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon Nebula, M8, NGC 6523 - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 6500 years - light, it extends over a diameter of 60 AL. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The irregular distribution of light in this beautiful part of the sky is due mainly to clouds of dust that dim the light of vast clouds of stars that make Sagittarius one of the brightest parts of the Milky Way. The Lagoon nebula is an illuminated part of such a dark ('molecule') cloud and it reveals the dust as dark lanes and globules silhouetted against the luminous gas. Within the nebula is the scattered young star cluster NGC 6530, recently formed from this material, though the centre of star - forming activity has now shifted westwards from the cluster to the brightest part of the nebula, around the tiny Hourglass Nebula

PIX4619624

Heart of the nebula NGC 3372 in the Carene - Eta Carinae and the Keyhole Nebula - The nebula of the Carene is located about 7000 years - light from the Earth. It is home to many hot stars, including the star Eta Carinae visible in the centre left of the image. Eta Carinae is a supermassive star (100 to 150 times the mass of the Sun). Image obtained by Siding Spring's 3.9m telescope. This wonderfully complex region at the heart of the NGC 3372 nebula was first described in detail by Sir John Herschel in 1838. He saw the bright circular shell visible in the upper part of the picture extending to the south to form a keyhole - shaped nebula. This luminous outline is no longer seen and the southern extension appears only as a dark dust cloud. It seems that the curious, explosively variable star Eta Carinae has enveloped itself in a cocoon of obscuring matter in the years since Herschel's observations and light from the star is no longer able to illuminate the rim of the dust cloud. The nebu

Heart of the nebula NGC 3372 in the Carene - Eta Carinae and the Keyhole Nebula - The nebula of the Carene is located about 7000 years - light from the Earth. It is home to many hot stars, including the star Eta Carinae visible in the centre left of the image. Eta Carinae is a supermassive star (100 to 150 times the mass of the Sun). Image obtained by Siding Spring's 3.9m telescope. This wonderfully complex region at the heart of the NGC 3372 nebula was first described in detail by Sir John Herschel in 1838. He saw the bright circular shell visible in the upper part of the picture extending to the south to form a keyhole - shaped nebula. This luminous outline is no longer seen and the southern extension appears only as a dark dust cloud. It seems that the curious, explosively variable star Eta Carinae has enveloped itself in a cocoon of obscuring matter in the years since Herschel's observations and light from the star is no longer able to illuminate the rim of the dust cloud. The nebu

PIX4618913

North America nebula in Cygnus - North America nebula in Cygnus - The North America nebula (NGC 7000) is a large emission nebula located near the star Deneb in the constellation Swan. NGC 7000 is the North America Nebula in Cygnus. Located just 3 degrees east - southeast of Deneb, the brightest star in Cygnus, this large 2 x 3 degree area of red hydrogen - alpha emission nebulosity is a complex star - forming region choked with gas and obscuring dust. It is located about 1,500 light years away

North America nebula in Cygnus - North America nebula in Cygnus - The North America nebula (NGC 7000) is a large emission nebula located near the star Deneb in the constellation Swan. NGC 7000 is the North America Nebula in Cygnus. Located just 3 degrees east - southeast of Deneb, the brightest star in Cygnus, this large 2 x 3 degree area of red hydrogen - alpha emission nebulosity is a complex star - forming region choked with gas and obscuring dust. It is located about 1,500 light years away

Sebastian Voltmer

PIX4620499

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in visible light (top) and infrared (bottom) by the Hubble space telescope. The top image shows a column of gas and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. In the infrared image, the dust clouds radiate little, the nascent star responsible for these jets appears. NGC 3372 is located about 7000 light years away from Earth. Images obtained in July 2009. The pictures demonstrate one example of the broad wavelength range of the new Wide Field Camera 3 (WFC3) aboard the Hubble telescope, extending from ultraviolet to visible to infrared light. Composed of gas and dust, the pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. The pair of images shows that astronomers are given a much more complete vie

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in visible light (top) and infrared (bottom) by the Hubble space telescope. The top image shows a column of gas and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. In the infrared image, the dust clouds radiate little, the nascent star responsible for these jets appears. NGC 3372 is located about 7000 light years away from Earth. Images obtained in July 2009. The pictures demonstrate one example of the broad wavelength range of the new Wide Field Camera 3 (WFC3) aboard the Hubble telescope, extending from ultraviolet to visible to infrared light. Composed of gas and dust, the pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. The pair of images shows that astronomers are given a much more complete vie

PIX4619072

Nebula NGC 7635 in Cassiopee - Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A massive star, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

Nebula NGC 7635 in Cassiopee - Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A massive star, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

PIX4620681

Nebulae NGC 6334 and NGC 6357 in Scorpio - Nebulae NGC 6334 and NGC 6357 in Scorpius - These nebulae are located approximately 5500 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The star - forming nebulae NGC 6334 and NGC 6357 show no evidence of a blue component in their colour - indeed, the blue - light plate used in these 3 - colour pictures had no nebulous image at all - nor is there any obvious sign of the bright blue stars normally found in these objects. They are excellent examples of the phenomenon known as 'interstellar reddening', the selective removal of blue light by minute particles of dust in the line of sight. This accounts for both the ruddy hue and apparent absence of blue stars. The hot stars are present but only some of the red part of their light is seen so they are not conspicuous. These nebulae are quite nearby (5500 light years) but located close to the Galactic plane and are buried in the dust of the Milky Way. Ca

Nebulae NGC 6334 and NGC 6357 in Scorpio - Nebulae NGC 6334 and NGC 6357 in Scorpius - These nebulae are located approximately 5500 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The star - forming nebulae NGC 6334 and NGC 6357 show no evidence of a blue component in their colour - indeed, the blue - light plate used in these 3 - colour pictures had no nebulous image at all - nor is there any obvious sign of the bright blue stars normally found in these objects. They are excellent examples of the phenomenon known as 'interstellar reddening', the selective removal of blue light by minute particles of dust in the line of sight. This accounts for both the ruddy hue and apparent absence of blue stars. The hot stars are present but only some of the red part of their light is seen so they are not conspicuous. These nebulae are quite nearby (5500 light years) but located close to the Galactic plane and are buried in the dust of the Milky Way. Ca

PIX4619350

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

PIX4620118

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained with a telescope of 61 cm. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the o

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained with a telescope of 61 cm. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the o

Adam Block

PIX4619510

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by Hubble Space Telescope (HST) and Subaru Telescope. The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass””” shape. This composite image combines optical and near - infrared astronomical data from the Hubble Space Telescope with mid - infrared data from the ground - based Subaru Telescope, located on Mauna Kea in Hawaii. The Hubble data (H - alpha, J, and H) were taken as part of H

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by Hubble Space Telescope (HST) and Subaru Telescope. The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass””” shape. This composite image combines optical and near - infrared astronomical data from the Hubble Space Telescope with mid - infrared data from the ground - based Subaru Telescope, located on Mauna Kea in Hawaii. The Hubble data (H - alpha, J, and H) were taken as part of H

PIX4620999

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

PIX4619538

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

PIX4619434

Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

PIX4619800

Nebula NGC 7635 in Cassiopee - The Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A star 40 times more massive than our Sun, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

Nebula NGC 7635 in Cassiopee - The Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A star 40 times more massive than our Sun, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

Adam Block

PIX4620709

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in infrared by the Hubble space telescope. The image reveals in the center of the image a young star accompanied by a jet of material. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in infrared light, the image shows the dense column and the surrounding greenish - coloured gas all but disappear. Only a faint outline of the pillar remains. By penetrating the wall of gas and dust, the infrared vision of WFC3 reveals the infant star that is probably blasting the jet. Part of the jet nearest the star is more prominent in this view. These features can be seen because infrared light, unlike visible light, can pass through the dust. Hubble's Wide

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in infrared by the Hubble space telescope. The image reveals in the center of the image a young star accompanied by a jet of material. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in infrared light, the image shows the dense column and the surrounding greenish - coloured gas all but disappear. Only a faint outline of the pillar remains. By penetrating the wall of gas and dust, the infrared vision of WFC3 reveals the infant star that is probably blasting the jet. Part of the jet nearest the star is more prominent in this view. These features can be seen because infrared light, unlike visible light, can pass through the dust. Hubble's Wide

PIX4619096

Antares star and the nebula Rho Ophiuchi - Antares and Rho Ophiuchi cloud - This coloree nebula represents the visible part of a very large molecule cloud, the cloud of Ophiuchus. This star-forming region is about 520 years old - light. The brightest star at the bottom left is the star Antares, from the Scorpio. The triple star Rho Ophiuchus is located in the middle of the blue cloud at the top of the picture. On the right, surrounded by a nebula, the star Sigma Scorpii. The globular clusters M4 (at the bottom of the image) and NGC 6144 (near Antares) are also visible on this image obtained with the UK Schmidt telescope of 1.2m. This photograph shows a portion of a great swath of obscuring gas and dust in the constellations Ophiuchus and Scorpius, and illustrates what is probably the most colourful region in the entire sky. The almost garish colours are due to the brilliance and contrasting colours of the stars, by whose reflected light we see the dust clouds. Dominating the picture is

Antares star and the nebula Rho Ophiuchi - Antares and Rho Ophiuchi cloud - This coloree nebula represents the visible part of a very large molecule cloud, the cloud of Ophiuchus. This star-forming region is about 520 years old - light. The brightest star at the bottom left is the star Antares, from the Scorpio. The triple star Rho Ophiuchus is located in the middle of the blue cloud at the top of the picture. On the right, surrounded by a nebula, the star Sigma Scorpii. The globular clusters M4 (at the bottom of the image) and NGC 6144 (near Antares) are also visible on this image obtained with the UK Schmidt telescope of 1.2m. This photograph shows a portion of a great swath of obscuring gas and dust in the constellations Ophiuchus and Scorpius, and illustrates what is probably the most colourful region in the entire sky. The almost garish colours are due to the brilliance and contrasting colours of the stars, by whose reflected light we see the dust clouds. Dominating the picture is

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Nebula M78 in Orion - M78 nebula in Orion - The nebula M78 (NGC 2068) is located about 1300 years - light from Earth and extends over 4 years - light. Composite image obtained with different large telescopes. M78, (NGC2068) is part of the Orion complex, a large region of star - forming gas and dust centred around M42 and M43. It is the brightest diffuse reflection nebula in the sky. M78 is some 1600 light - years away and around 4 light - years across. Composite Image from Multiple Data Sources

Nebula M78 in Orion - M78 nebula in Orion - The nebula M78 (NGC 2068) is located about 1300 years - light from Earth and extends over 4 years - light. Composite image obtained with different large telescopes. M78, (NGC2068) is part of the Orion complex, a large region of star - forming gas and dust centred around M42 and M43. It is the brightest diffuse reflection nebula in the sky. M78 is some 1600 light - years away and around 4 light - years across. Composite Image from Multiple Data Sources

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Nebula M78 in Orion - M78 nebula in Orion - The nebula M78 (NGC 2068) is located about 1600 years - light from Earth and extends over 4 years - light. M78, (NGC 2068) is part of the Orion complex, a large region of star - forming gas and dust centred around M42 and M43. It is the brightest diffuse reflection nebula in the sky. M78 is some 1600 light - years away and around 4 light - years across

Nebula M78 in Orion - M78 nebula in Orion - The nebula M78 (NGC 2068) is located about 1600 years - light from Earth and extends over 4 years - light. M78, (NGC 2068) is part of the Orion complex, a large region of star - forming gas and dust centred around M42 and M43. It is the brightest diffuse reflection nebula in the sky. M78 is some 1600 light - years away and around 4 light - years across

Tom Davis

PIX4618183

Nebula NGC 281 in Cassiopee - Nebula NGC 281 in Cassiopeia - NGC 281 is a star-forming region about 10,000 light years away from Earth in the constellation Cassiopee. At the center of this nebula is the cluster of stars IC 1590 whose stars are only a few million years old. Image obtained by combining light through 3 different filters that highlight oxygen, hydrogen, and sulfur. NGC 281 is a busy workshop of star formation. Prominent features include a small open cluster of stars, a diffuse emission nebula, large lanes of obscuring gas and dust, and dense knots of dust and gas in which stars may still be forming. The open cluster of stars IC 1590 visible around the center has formed only in the last few million years. The brightest member of this cluster is actually a multiple - star system shining light that helps ionize the nebula's gas. The lanes of dust visible below the center are likely homes of future star formation. The entire NGC 281 system lies about 10 thousand light years di

Nebula NGC 281 in Cassiopee - Nebula NGC 281 in Cassiopeia - NGC 281 is a star-forming region about 10,000 light years away from Earth in the constellation Cassiopee. At the center of this nebula is the cluster of stars IC 1590 whose stars are only a few million years old. Image obtained by combining light through 3 different filters that highlight oxygen, hydrogen, and sulfur. NGC 281 is a busy workshop of star formation. Prominent features include a small open cluster of stars, a diffuse emission nebula, large lanes of obscuring gas and dust, and dense knots of dust and gas in which stars may still be forming. The open cluster of stars IC 1590 visible around the center has formed only in the last few million years. The brightest member of this cluster is actually a multiple - star system shining light that helps ionize the nebula's gas. The lanes of dust visible below the center are likely homes of future star formation. The entire NGC 281 system lies about 10 thousand light years di

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IC 2944 in Centaur - Stellar nursery IC 2944 - View of the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. This intriguing new view of a spectacular stellar nursery IC 2944 is being released to celebrate a milestone: 15 years of Eso's Very Large Telescope. This image also shows a group of thick clouds of dust known as the Thackeray globules silhouetted against the pale pink glowing gas of the nebula. These blood cells are under fierce bombardment from the ultraviolet radiation from nearby hot young stars. They are both being eroded away and also fragmenting, rather like lumps of butter dropped onto a hot frying pan. It is likely that Thackeray's globules will be destroyed before they can collapse and form new stars

IC 2944 in Centaur - Stellar nursery IC 2944 - View of the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. This intriguing new view of a spectacular stellar nursery IC 2944 is being released to celebrate a milestone: 15 years of Eso's Very Large Telescope. This image also shows a group of thick clouds of dust known as the Thackeray globules silhouetted against the pale pink glowing gas of the nebula. These blood cells are under fierce bombardment from the ultraviolet radiation from nearby hot young stars. They are both being eroded away and also fragmenting, rather like lumps of butter dropped onto a hot frying pan. It is likely that Thackeray's globules will be destroyed before they can collapse and form new stars

PIX4622543

All-sky mosaic map of dust emission of the Milky Way Galaxy

All-sky mosaic map of dust emission of the Milky Way Galaxy

UIG5669232

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

PIX4619447

Nebula North America in the Swan - The North America Nebula - The North America Nebula (NGC 7000) is a large emission nebula located near the star Deneb in the constellation Swan. NGC 7000 is the North America Nebula in Cygnus. Located just 3 degrees east - southeast of Deneb, the brightest star in Cygnus, this large 2 x 3 degree area of red hydrogen - alpha emission nebulosity is a complex star - forming region choked with gas and obscuring dust. It is located about 1,500 light years away and is about 50 light years wide. Three open clusters are associated with the North America Nebula: NGC 6989 in the north - west part of the nebula, NGC 6996 in the north, and NGC 6997 in the west. LDN 935 is the dark nebula that makes up the Gulf of Mexico region, and B253 is the dark nebula at the top (north) of the image. The two brightest stars in the image are Xi Cygnii, the 3.7 magnitude red star at left, and 57 Cygnii, the 4.8 magnitude blue - white star at the right. The North America Nebula

Nebula North America in the Swan - The North America Nebula - The North America Nebula (NGC 7000) is a large emission nebula located near the star Deneb in the constellation Swan. NGC 7000 is the North America Nebula in Cygnus. Located just 3 degrees east - southeast of Deneb, the brightest star in Cygnus, this large 2 x 3 degree area of red hydrogen - alpha emission nebulosity is a complex star - forming region choked with gas and obscuring dust. It is located about 1,500 light years away and is about 50 light years wide. Three open clusters are associated with the North America Nebula: NGC 6989 in the north - west part of the nebula, NGC 6996 in the north, and NGC 6997 in the west. LDN 935 is the dark nebula that makes up the Gulf of Mexico region, and B253 is the dark nebula at the top (north) of the image. The two brightest stars in the image are Xi Cygnii, the 3.7 magnitude red star at left, and 57 Cygnii, the 4.8 magnitude blue - white star at the right. The North America Nebula

Jerry Lodriguss

PIX4620479

Nebula NGC 6188 in the Altar - The NGC 6188 nebula and NGC 6193 in Ara - Nebula NGC 6188 is located about 4000 years from Earth. It is home to a cluster of young stars NGC 6193, formed three million years ago. Image obtained by Siding Spring's 3.9m telescope. Here we see two bright stars whose radiant energy is beating down on to the surface of a dark cloud, very similar to the Horsehead in Orion. The cloud itself is opaque and because of that, very cold inside. These conditions are ideal for the formation of organic molecules on the surfaces of the chilled dust particles. The opacity of the cloud protects the fragile molecules within from the energetic radiation of nearby stars, but as its surface is gradually warmed and eroded, the delicate organic molecules are destroyed and the hydrogen released glows as a distinctive red emission nebula

Nebula NGC 6188 in the Altar - The NGC 6188 nebula and NGC 6193 in Ara - Nebula NGC 6188 is located about 4000 years from Earth. It is home to a cluster of young stars NGC 6193, formed three million years ago. Image obtained by Siding Spring's 3.9m telescope. Here we see two bright stars whose radiant energy is beating down on to the surface of a dark cloud, very similar to the Horsehead in Orion. The cloud itself is opaque and because of that, very cold inside. These conditions are ideal for the formation of organic molecules on the surfaces of the chilled dust particles. The opacity of the cloud protects the fragile molecules within from the energetic radiation of nearby stars, but as its surface is gradually warmed and eroded, the delicate organic molecules are destroyed and the hydrogen released glows as a distinctive red emission nebula

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Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

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Nebula NGC 2359 in the Big Dog - A Wolf - Rayet star in NGC 2359 - NGC 2359 is a nebula in the Big Dog that houses a star Wolf - Rayet, HD 56925. Image obtained by Siding Spring's 3.9m telescope. NGC 2359 is the nebula produced by a single, extremely hot star HD 56925. This is one of the rare Wolf - Rayet stars, whose intrinsic brilliance is combined with high rates of mass loss from its surface. This material is ejected from the star with velocities which approach 2000 kilometers per second. This violent activity quickly reduces the mass of the star which in turn reduces the instability. The rapidly - moving ejected material interacts with the gas and dust around the star producing the cosmic bubble seen here. Such stars are unusual, largely because extreme behaviour of this kind cannot be sustained for long. This particular example is spectacular because it happens to inhabit a part of our Galaxy rich in interstellar gas

Nebula NGC 2359 in the Big Dog - A Wolf - Rayet star in NGC 2359 - NGC 2359 is a nebula in the Big Dog that houses a star Wolf - Rayet, HD 56925. Image obtained by Siding Spring's 3.9m telescope. NGC 2359 is the nebula produced by a single, extremely hot star HD 56925. This is one of the rare Wolf - Rayet stars, whose intrinsic brilliance is combined with high rates of mass loss from its surface. This material is ejected from the star with velocities which approach 2000 kilometers per second. This violent activity quickly reduces the mass of the star which in turn reduces the instability. The rapidly - moving ejected material interacts with the gas and dust around the star producing the cosmic bubble seen here. Such stars are unusual, largely because extreme behaviour of this kind cannot be sustained for long. This particular example is spectacular because it happens to inhabit a part of our Galaxy rich in interstellar gas

PIX4618821

Nebulae NGC 1973 - 1975 - 1977 and M42 - 43 in Orion - Nebulae in Orion - Reflection of nebula NGC 1973 - 1975 - 1977 (bottom of image) and nebulae M43 and M42 in Orion. The nebulae NGC 1973 - 5 - 7 are reflection nebula. Most of the blue nebulosity is starlight scattered by dust, while some of the stars are sufficiently hot to excite the wisps of hydrogen that linger here and create a distinctive red glow. To the south of the nebula (at the top of the picture) the Orion nebula, M43 and M42

Nebulae NGC 1973 - 1975 - 1977 and M42 - 43 in Orion - Nebulae in Orion - Reflection of nebula NGC 1973 - 1975 - 1977 (bottom of image) and nebulae M43 and M42 in Orion. The nebulae NGC 1973 - 5 - 7 are reflection nebula. Most of the blue nebulosity is starlight scattered by dust, while some of the stars are sufficiently hot to excite the wisps of hydrogen that linger here and create a distinctive red glow. To the south of the nebula (at the top of the picture) the Orion nebula, M43 and M42

R. Gendler

PIX4618039

Detail of nebula NGC 3372 in Carene - Eta Carinae nebula detail - Detail of nebula NGC 3372 in the constellation Carene. Within the dark structures visible in this image, stars will be born. Image obtained by the Hubble Space Telescope in 2005 and 2010. These one - light - year - tall pillars of cold hydrogen and dust, imaged by the Hubble Space Telescope, are located in the Carina Nebula. Violent stellar winds and powerful radiation from massive stars are sculpting the surrounding nebula. Inside the dense structures, new stars may be born. This image of dust pillars in the Carina Nebula is a composite of 2005 observations taken of the region in hydrogen light (light emitted by hydrogen atoms) along with 2010 observations taken in oxygen light (light emitted by oxygen atoms), both times with Hubble's Advanced Camera for Surveys. The immense Carina Nebula is an estimated 7,500 light - years away in the southern constellation Carina

Detail of nebula NGC 3372 in Carene - Eta Carinae nebula detail - Detail of nebula NGC 3372 in the constellation Carene. Within the dark structures visible in this image, stars will be born. Image obtained by the Hubble Space Telescope in 2005 and 2010. These one - light - year - tall pillars of cold hydrogen and dust, imaged by the Hubble Space Telescope, are located in the Carina Nebula. Violent stellar winds and powerful radiation from massive stars are sculpting the surrounding nebula. Inside the dense structures, new stars may be born. This image of dust pillars in the Carina Nebula is a composite of 2005 observations taken of the region in hydrogen light (light emitted by hydrogen atoms) along with 2010 observations taken in oxygen light (light emitted by oxygen atoms), both times with Hubble's Advanced Camera for Surveys. The immense Carina Nebula is an estimated 7,500 light - years away in the southern constellation Carina

PIX4619137

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

PIX4619490

Nebulae NGC 6334 and NGC 6357 in Scorpio - Nebulae NGC 6334 and NGC 6357 in Scorpius: These nebulae are located about 5500 light years from Earth - Located in the constellation of Scorpius, the Cat's Paw Nebula resemble a faint, luminous paw-print on the sky. Deep images reveal that the nebula is about a degree across in the sky. At a distance of about 5500 light-years away it is a truly vast structure spanning almost 100 light-years across. The sculpted gases of NGC 6334 are illuminated by the light of numerous powerful stars, some exceeding 10 solar masses. The two brilliant blue stars in the upper left are Lambda and Kappa Scorpii. Many of these luminous hot stars are surprisingly not visible because they lie within the dusty plane of our galaxy. At infrared wavelengths the numerous hot stars are revealed and the nature of this object as a region of massive star formation becomes clear. In the past decade water masers, molecular outflows, and x-ray sources have provided direct evide

Nebulae NGC 6334 and NGC 6357 in Scorpio - Nebulae NGC 6334 and NGC 6357 in Scorpius: These nebulae are located about 5500 light years from Earth - Located in the constellation of Scorpius, the Cat's Paw Nebula resemble a faint, luminous paw-print on the sky. Deep images reveal that the nebula is about a degree across in the sky. At a distance of about 5500 light-years away it is a truly vast structure spanning almost 100 light-years across. The sculpted gases of NGC 6334 are illuminated by the light of numerous powerful stars, some exceeding 10 solar masses. The two brilliant blue stars in the upper left are Lambda and Kappa Scorpii. Many of these luminous hot stars are surprisingly not visible because they lie within the dusty plane of our galaxy. At infrared wavelengths the numerous hot stars are revealed and the nature of this object as a region of massive star formation becomes clear. In the past decade water masers, molecular outflows, and x-ray sources have provided direct evide

R. Gendler

PIX4619391

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