by neufer » Tue May 19, 2009 2:34 pm
apodman wrote:
I hope all the talk about Sagittarius isn't disorienting anyone. You won't find the most recognizable stars of Sagittarius in the picture. The familiar teapot is out-of-frame upper left. North is to the right. The five bright blue stars on the left of the picture are the tail of Scorpius.
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The prettiest nebulae in:
http://apod.nasa.gov/apod/ap090519.html
are
the red stings of the Scorpion :
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http://antwrp.gsfc.nasa.gov/apod/ap991207.html wrote:
Explanation: The Cat's Paw Nebula is the glowing red nebula near the top of the above picture -- the lower nebula is NGC 6357. At 5500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms. Alternatively known as the Bear Claw Nebula or NGC 6334, stars nearly ten times the mass of our Sun have been born there in only the past few million years.
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http://antwrp.gsfc.nasa.gov/apod/ap080304.html wrote:
Explanation: Nebulae are perhaps as famous for being identified with familiar shapes as perhaps cats are for getting into trouble. Still, no known cat could have created the vast Cat's Paw Nebula visible in Scorpius. At 5,500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms. Alternatively known as the Bear Claw Nebula or NGC 6334, stars nearly ten times the mass of our Sun have been born there in only the past few million years.
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http://antwrp.gsfc.nasa.gov/apod/ap060628.html wrote:
Explanation: For reasons unknown, NGC 6357 is forming some of the most massive stars ever discovered. Near the more obvious Cat's Paw nebula, NGC 6357 houses the open star cluster Pismis 24, home to these tremendously bright and blue stars. The overall red glow near the inner star forming region results from the emission of ionized hydrogen gas. The surrounding nebula, shown above, holds a complex tapestry of gas, dark dust, stars still forming, and newly born stars. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity. NGC 6357 spans about 400 light years and lies about 8,000 light years away toward the constellation of the Scorpion.
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http://antwrp.gsfc.nasa.gov/apod/ap081026.html wrote:
Explanation: How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. This star is the brightest object located just above the gas front in the above image. Close inspection of images taken recently with the Hubble Space Telescope, however, have shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least. Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. Toward the bottom of the image, stars are still forming in the associated emission nebula NGC 6357, including several that appear to be breaking out and illuminating a spectacular cocoon.
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http://antwrp.gsfc.nasa.gov/apod/ap081009.html[quote="apodman"]
I hope all the talk about Sagittarius isn't disorienting anyone. You won't find the most recognizable stars of Sagittarius in the picture. The familiar teapot is out-of-frame upper left. North is to the right. The five bright blue stars on the left of the picture are the tail of Scorpius.[/quote]
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The prettiest nebulae in: [b] http://apod.nasa.gov/apod/ap090519.html[/b]
are [color=#FF0000][size=150][b]the red stings of the Scorpion[/b][/size][/color] :
[img]http://upload.wikimedia.org/wikipedia/commons/4/47/Skorpion_fg10.jpg[/img]
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[quote=" http://antwrp.gsfc.nasa.gov/apod/ap991207.html"]
Explanation: The Cat's Paw Nebula is the glowing red nebula near the top of the above picture -- the lower nebula is NGC 6357. At 5500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms. Alternatively known as the Bear Claw Nebula or NGC 6334, stars nearly ten times the mass of our Sun have been born there in only the past few million years. [/quote]----------------------------------------------
[quote=" http://antwrp.gsfc.nasa.gov/apod/ap080304.html"]
Explanation: Nebulae are perhaps as famous for being identified with familiar shapes as perhaps cats are for getting into trouble. Still, no known cat could have created the vast Cat's Paw Nebula visible in Scorpius. At 5,500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms. Alternatively known as the Bear Claw Nebula or NGC 6334, stars nearly ten times the mass of our Sun have been born there in only the past few million years.[/quote]----------------------------------------------
[quote=" http://antwrp.gsfc.nasa.gov/apod/ap060628.html"]
Explanation: For reasons unknown, NGC 6357 is forming some of the most massive stars ever discovered. Near the more obvious Cat's Paw nebula, NGC 6357 houses the open star cluster Pismis 24, home to these tremendously bright and blue stars. The overall red glow near the inner star forming region results from the emission of ionized hydrogen gas. The surrounding nebula, shown above, holds a complex tapestry of gas, dark dust, stars still forming, and newly born stars. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity. NGC 6357 spans about 400 light years and lies about 8,000 light years away toward the constellation of the Scorpion. [/quote]----------------------------------------------
[quote=" http://antwrp.gsfc.nasa.gov/apod/ap081026.html"]
Explanation: How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. This star is the brightest object located just above the gas front in the above image. Close inspection of images taken recently with the Hubble Space Telescope, however, have shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least. Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. Toward the bottom of the image, stars are still forming in the associated emission nebula NGC 6357, including several that appear to be breaking out and illuminating a spectacular cocoon. [/quote]-------------------------------------------
[b] http://antwrp.gsfc.nasa.gov/apod/ap081009.html[/b]