aug 272013
 
Anne's Image of the Day: Spiral Galaxy Messier 58

August 27, 2013 Messier 58, a spiral galaxy in Virgo Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/Galaxies/M58) Messier 58 (also known as NGC 4579) is a barred spiral galaxy of some 107,000 light-years across with an estimated mass of 300 billion solar masses, located approximately 68 million light-years away from Earth [continue reading]

aug 232013
 
Anne's Image of the Day: Starburst Galaxy 2MASX J05210136-2521450

August 23, 2013 2MASX J05210136-2521450, a starburst galaxy Image Credit: Luca Limatola, ESA/Hubble & NASA This image shows a bright spiral galaxy that is cataloged under the name 2MASX J05210136-2521450. Behind the rather unpoetical name hides a fascinating starburst galaxy that immediately stands out by its peculiar shape. Also known as IRAS 05189-2524, it is [continue reading]

aug 212013
 
Anne's Image of the Day: Spiral Galaxy NGC 7217

August 21, 2013 NGC 7217, a spiral galaxy in Pegasus Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/Galaxies/NGC7217) NGC 7217 is an unbarred spiral galaxy that lies some 50 million light-years away from Earth in the northern constellation of Pegasus (the Winged Horse). It is receding from us at approximately 952 kilometers [continue reading]

aug 142013
 
Anne's Image of the Day: Interacting Galaxies IC 2810

August 14, 2013 IC 2810, a pair of interacting galaxies in Leo Image Credit: NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University) IC 2810 (also known as IC2810A, and seen at the top of the image) is a barred spiral galaxy with a diameter of 178,000 x [continue reading]

jul 262013
 
Quasars Influence Galaxy Growth

  Quasars are among the brightest, oldest, most distant, and most powerful objects in the Universe. Powered by massive black holes at the center of most known galaxies, quasars can emit enormous amounts of energy, up to a thousand times the total output of the hundreds of billions of stars in our entire Milky Way. [continue reading]

jul 042013
 
Anne's Image of the Day: Merging Galaxies Arp 220

July 4, 2013 Arp 220, merging galaxies in Serpens Image Credit: ESA/NASA and WikiSky Arp 220 is the result of a collision between two galaxies which are now in the process of merging, situated some 250 million light-years away from Earth in the northern constellation of Serpens (the Serpent). It is receding from us at [continue reading]