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]