RCW 120: Difference between revisions
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[[File:RCW 120aa.jpg|thumb]] |
[[File:RCW 120aa.jpg|thumb|<center>Image by [[ESA]]'s [[Herschel Space Observatory]]]] |
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'''RCW 120''' is an [[H II region|H II]] emission nebula in the southern Milky Way and located some 4,300 light-years from Earth. |
'''RCW 120''' is an [[H II region|H II]] emission nebula in the southern Milky Way and located some 4,300 light-years from Earth. |
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<ref>[http://news.bbc.co.uk/2/hi/science/nature/8664318.stm BBC News]]</ref><ref>[http://galaxymap.org/cgi-bin/rcw.py?s=111 Galaxy Map]</ref> Also known as [[Sharpless catalog|Sh 2-3]] and [[Gum catalog|Gum 58]], it is situated at co-ordinates [[Right ascension|348.25°]], [[Declination|0.49°]]. |
<ref>[http://news.bbc.co.uk/2/hi/science/nature/8664318.stm BBC News]]</ref><ref>[http://galaxymap.org/cgi-bin/rcw.py?s=111 Galaxy Map]</ref> Also known as [[Sharpless catalog|Sh 2-3]] and [[Gum catalog|Gum 58]], it is situated at co-ordinates [[Right ascension|348.25°]], [[Declination|0.49°]]. |
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[[Alla S. Avedisova]] states that RCW 120 is ionised by the O8 V star [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%402344615&Name=CD-38%2011636 CD -38 11636] and the B2 V star [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%402330221&Name=VdBH%2084%20B VDBH 84B], and places the nebula in the star formation region [http://galaxymap.org/avedisova/html/2932.html SFR 348.26+0.47] along with 3 [[masers]] and the radio [[HII region]] CH87 347.386+0.266. |
[[Alla S. Avedisova]] states that RCW 120 is ionised by the O8 V star [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%402344615&Name=CD-38%2011636 CD -38 11636] and the B2 V star [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%402330221&Name=VdBH%2084%20B VDBH 84B], and places the nebula in the star formation region [http://galaxymap.org/avedisova/html/2932.html SFR 348.26+0.47] along with 3 [[masers]] and the radio [[HII region]] CH87 347.386+0.266. |
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The Herschel infra-red telescope's image shows an embryonic star (white spot at the lowest point of the blue ring) which is likely to become one of the brightest stars in our Galaxy at some time within the next few hundred thousand years, is already about ten times more massive than the Sun and is set to grow much larger by attracting surrounding gas and dust. |
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<ref>http://www.sciencecodex.com/herschel_reveals_the_hidden_side_of_star_birth</ref> |
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====External links==== |
====External links==== |
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Revision as of 10:37, 7 May 2010
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RCW 120 is an H II emission nebula in the southern Milky Way and located some 4,300 light-years from Earth. [1][2] Also known as Sh 2-3 and Gum 58, it is situated at co-ordinates 348.25°, 0.49°.
Alla S. Avedisova states that RCW 120 is ionised by the O8 V star CD -38 11636 and the B2 V star VDBH 84B, and places the nebula in the star formation region SFR 348.26+0.47 along with 3 masers and the radio HII region CH87 347.386+0.266.
The Herschel infra-red telescope's image shows an embryonic star (white spot at the lowest point of the blue ring) which is likely to become one of the brightest stars in our Galaxy at some time within the next few hundred thousand years, is already about ten times more massive than the Sun and is set to grow much larger by attracting surrounding gas and dust. [3]