Back وسترلوند 2 Arabic Westerlund 2 Breton Westerlund 2 Catalan Westerlund 2 German Westerlund 2 Spanish Westerlund 2 French Westerlund 2 Italian 웨스터룬드 2 Korean Westerlund 2 Polish Westerlund 2 Russian
| Westerlund 2 | |
|---|---|
 The cluster Westerlund 2 and its surroundings Credit: Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Right ascension | 10h 23m 58.1s[1] |
| Declination | −57° 45′ 49″[1] |
| Distance | 20000 ly (6000 pc) |
| Apparent magnitude (V) | 10.5[1] |
| Physical characteristics | |
| Contains some of the hottest, brightest, and most massive stars. | |
| Other designations | ESO 127-18, VDBH 95[1] |
| Associations | |
| Constellation | Carina |
Westerlund 2 is an obscured compact young star cluster (perhaps even a super star cluster[2]) in the Milky Way, with an estimated age of about one or two million years. It contains some of the hottest, brightest, and most massive stars known. The cluster resides inside a stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. It is half a degree from the naked eye Cepheid variable V399 Carinae.[3]
- ^ a b c d "Cl Westerlund 2". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 1 May 2018.
- ^ Y. Fukui; et al. (2015). "Cloud-cloud collision which triggered formation of the super star cluster RCW38". The Astrophysical Journal. 1504 (1): 26. arXiv:1504.05391. Bibcode:2016ApJ...820...26F. doi:10.3847/0004-637X/820/1/26. S2CID 118096773.
- ^ "Hubble Space Telescope Celebrates 25 Years of Unveiling the Universe". NASA. 23 April 2015.