Koposov I

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Koposov I
Observation data
Constellation Virgo
Right ascension 11h 59m 18.05s[1]
Declination +12° 15′ 36.0″[1]
Distance 157.5 kly (48.3 kpc)[1]
Apparent magnitude (V) 14.20[1]
Physical characteristics
Radius approx. 3 pc (9.8 ly)[2]
See also: Globular cluster, List of globular clusters

Koposov I is a low-luminosity globular cluster in the constellation Virgo in the halo of the Milky Way galaxy. It was discovered, along with globular cluster Koposov II 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 1". 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:0706.0019free to read. Bibcode:2007ApJ...669..337K. doi:10.1086/521422. 

Coordinates: Sky map 11h 59m 18.05s, +12° 15′ 36.0″