RCW 120
| Emission nebula | |
|---|---|
| H II region | |
 | |
| Observation data: J2000 epoch | |
| Right ascension | 17h 12m 23.2s |
| Declination | −38° 26′ 51.2″ |
| Distance | 4,300 ly |
| Constellation | Scorpius |
| Designations | GUM 58 Sh 2-3 Green Ring Nebula |
| See also: Lists of nebulae | |
RCW 120 is an emission nebula and H II region in the southern Milky Way and located some 4,300 light-years from Earth.[1]
Its designation appears in the RCW Catalogue published in 1960, whose circular diameter size is 6 arcmin.[2] It also catalogued as Sh 2-3 and Gum 58.
Veta S. Avedisova considers RCW 120 is being ionised by the O8 V star CD -38 11636[3] and places the nebula in the star formation region SFR 348.26+0.47[4] along with 3 Astrophysical maser CH87 347.386+0.266.
The Herschel infra-red telescope's image shows an embryonic star that is likely to become one of the brightest stars in our Galaxy at some time within the next few hundred thousand years. The star now appears about ten times more massive than the Sun and may grow much larger by accreting material from the surrounding gas and dust.[5]
Gallery
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![RCW 120, also known as Sharpless 2-3 was captured by the SMARTS 0.9-meter Telescope at Cerro Tololo Inter-American Observatory [6]](//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Iotw2230a_A_Crimson_Nursery.jpg/264px-Iotw2230a_A_Crimson_Nursery.jpg)
RCW 120, also known as Sharpless 2-3 was captured by the SMARTS 0.9-meter Telescope at Cerro Tololo Inter-American Observatory[6]
![RCW 120, also known as Sharpless 2-3 was captured by the SMARTS 0.9-meter Telescope at Cerro Tololo Inter-American Observatory [6]](http://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Iotw2230a_A_Crimson_Nursery.jpg/264px-Iotw2230a_A_Crimson_Nursery.jpg)
External links
- The Galactic HII Region RCW 120
References
- ^ "BBC News : Herschel space telescope pierces giant star bubble". Retrieved 26 February 2017.
- ^ Rodgers, A. W.; Campbell, C. T.; Whiteoak, J. B. (1960), "A catalogue of Hα-emission regions in the southern Milky Way", Monthly Notices of the Royal Astronomical Society, 121 (1): 103–110, Bibcode:1960MNRAS.121..103R, doi:10.1093/mnras/121.1.103
- ^ "SIMBAD query result".
- ^ "Star Formation Region Avedisova 2932 | Galaxy Map".
- ^ "Science Codex: RCW 120 and the hidden side of star birth". 19 May 2010. Retrieved 26 February 2017.
- ^ "A Crimson Nursery". Retrieved 16 December 2022.
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RCW Catalogue
- RCW 1
- RCW 2
- RCW 3
- RCW 4
- RCW 5
- RCW 6
- RCW 7
- RCW 8
- RCW 9
- RCW 10
- RCW 11
- RCW 12
- RCW 13
- RCW 14
- RCW 15
- RCW 16
- RCW 17
- RCW 18
- RCW 19
- RCW 20
- RCW 21
- RCW 22
- RCW 23
- RCW 24
- RCW 25
- RCW 26
- RCW 27
- RCW 28
- RCW 29
- RCW 30
- RCW 31
- RCW 32
- RCW 33
- RCW 34
- RCW 35
- RCW 36
- RCW 37
- RCW 38
- RCW 39
- RCW 40
- RCW 41
- RCW 42
- RCW 43
- RCW 44
- RCW 45
- RCW 46
- RCW 47
- RCW 48
- RCW 49
- RCW 50
- RCW 51
- RCW 52
- RCW 53
- RCW 54
- RCW 55
- RCW 56
- RCW 57
- RCW 58
- RCW 59
- RCW 60
- RCW 61
- RCW 62
- RCW 63
- RCW 64
- RCW 65
- RCW 66
- RCW 67
- RCW 68
- RCW 69
- RCW 70
- RCW 71
- RCW 72
- RCW 73
- RCW 74
- RCW 75
- RCW 76
- RCW 77
- RCW 78
- RCW 79
- RCW 80
- RCW 81
- RCW 82
- RCW 83
- RCW 84
- RCW 85
- RCW 86
- RCW 87
- RCW 88
- RCW 89
- RCW 90
- RCW 91
- RCW 92
- RCW 93
- RCW 94
- RCW 95
- RCW 96
- RCW 97
- RCW 98
- RCW 99
- RCW 100
- RCW 101
- RCW 102
- RCW 103
- RCW 104
- RCW 105
- RCW 106
- RCW 107
- RCW 108
- RCW 109
- RCW 110
- RCW 111
- RCW 112
- RCW 113
- RCW 114
- RCW 115
- RCW 116
- RCW 117
- RCW 118
- RCW 119
- RCW 120
- RCW 121
- RCW 122
- RCW 123
- RCW 124
- RCW 125
- RCW 126
- RCW 127
- RCW 128
- RCW 129
- RCW 130
- RCW 131
- RCW 132
- RCW 133
- RCW 134
- RCW 135
- RCW 136
- RCW 137
- RCW 138
- RCW 139
- RCW 140
- RCW 141
- RCW 142
- RCW 143
- RCW 144
- RCW 145
- RCW 146
- RCW 147
- RCW 148
- RCW 149
- RCW 150
- RCW 151
- RCW 152
- RCW 153
- RCW 154
- RCW 155
- RCW 156
- RCW 157
- RCW 158
- RCW 159
- RCW 160
- RCW 161
- RCW 162
- RCW 163
- RCW 164
- RCW 165
- RCW 166
- RCW 167
- RCW 168
- RCW 169
- RCW 170
- RCW 171
- RCW 172
- RCW 173
- RCW 174
- RCW 175
- RCW 176
- RCW 177
- RCW 178
- RCW 179
- RCW 180
- RCW 181
- RCW 182
- See also: Emission nebula
- H I region
- H II region
