jan 082013
 
Anne's Picture of the Day: Reflection Nebula Sharpless 239

January 8, 2012 Sh2-239, a reflection nebula surrounded by a star-forming cloud Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://www.caelumobservatory.com/index.html) This image shows Sharpless 239 (Sh2-239 or LBN 821, left), a reflection nebula surrounded by LDN 1551, a dark star-forming cloud of gas and dust. The region stretches for nearly 3 light-years [continue reading]