Koposov 2 is a low-luminosity globular cluster in the constellation Gemini in the halo of the Milky Way galaxy. It was discovered, along with globular cluster Koposov 1 by S. Koposov et al. in 2007. Koposov 1 and Koposov 2 were described by their discoverers as the "lowest luminosity globular clusters orbiting the Milky Way," along with AM 4, Palomar 1, and Whiting 1.[2]
| Koposov 2 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Gemini |
| Right ascension | 07h 58m 17.0s[1][2] |
| Declination | +26° 15′ 18.0″[1][2] |
| Distance | 113.1 kly (34.7 kpc)[1] |
| Apparent magnitude (V) | 17.60[1] |
| Physical characteristics | |
| Radius | approx. 3 pc (9.8 ly)[2] |
References
edit- ^ a b c d "Koposov 2". Spider. Retrieved 15 February 2013.
- ^ a b c d Koposov, S.; de Jong, J.T.A.; Belokurov, V.; Rix, H.-W.; Zucker, D.B.; Evans, N.W.; Gilmore, G.; Irwin, M.J.; Bell, E.F. (2007). "The Discovery of Two Extremely Low Luminosity Milky Way Globular Clusters". The Astrophysical Journal. 669 (1): 337–342. arXiv:0706.0019. Bibcode:2007ApJ...669..337K. doi:10.1086/521422. S2CID 6680417.
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