dec 272012
 
Anne's Picture of the Day: Hickson Compact Group 7

December 27, 2012 HCG 7, a small group of galaxies in Cetus Image Credit: ESA/Hubble & NASA Hickson Compact Group 7, or HCG 7 for short, is a small group of galaxies consisting of 3 spiral galaxies and 1 elongated lenticular (lens-shaped) galaxy in close proximity and which are weakly gravitationally bound. They lie about [continue reading]