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]

dec 092012
 
Anne's Picture of the Day: HCG 87

December 9, 2012 HCG 87, a group of galaxies in Capricornus Image Credit: The Hubble Heritage Team (STScI/AURA/NASA) Hickson Compact Group 87 is a small group of gravitational bound galaxies, located about 400 million light-years away in the constellation of Capricornus. A Hickson Compact Group (HCG for short) is a collection of four or five [continue reading]