Koposov II

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Koposov II
Observation data
Constellation Gemini
Right ascension 07h 58m 17.0s[1]
Declination +26° 15′ 18.0″[1]
Distance 113.1 kly (34.7 kpc)[1]
Apparent magnitude (V) 17.60[1]
Physical characteristics
Radius approx. 3 pc (9.8 ly)[2]
See also: Globular cluster, List of globular clusters

Koposov II 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 I by S. Koposov et al. in 2007. Koposov I and Koposov II 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]


  1. ^ a b c d "Koposov 2". Spider. Retrieved 15 February 2013. 
  2. ^ a b 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: 337–342. arXiv:0706.0019Freely accessible. Bibcode:2007ApJ...669..337K. doi:10.1086/521422. 

Coordinates: Sky map 07h 58m 17.0s, +26° 15′ 18.0″