nov 292013
 
Anne's Image of the Day: Hickson Compact Group 90

November 29, 2013 HCG 90, a small cluster of galaxies in Piscis Austrinus Image Credit: NASA, ESA, and R. Sharples (University of Durham) Hickson Compact Group 90 (HCG 90) is a tight cluster of 16 galaxies (including many dwarf galaxies), located approximately 100 million light-years away in the southern constellation of Piscis Austrinus (the Southern [continue reading]

nov 152013
 
Anne's Image of the Day: The Coma Cluster of Galaxies

November 15, 2013 The Coma Cluster of Galaxies in Coma Berenices Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/Galaxies/ComaCluster) The Coma Cluster (also known as Abell 1656) is a large cluster of galaxies that contains over 1,000 identified galaxies in a region of about 2 million light-years across, located around 321 million [continue reading]