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Anne's Picture of the Day: The Ghost Nebula

October 31, 2012 The Ghost Nebula, a reflection nebula in Cepheus Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://www.caelumobservatory.com/index.html) With this cosmic ghost I’m wishing you all a happy and spooky Halloween!   The Ghost Nebula (designated Sharpless 2-136 (Sh2-136) and vdB 141) is a rather isolated reflection nebula over 2 light-years [continue reading]