okt 062013
Anne's Image of the Day: Planetary Nebula Sh2-71

October 6, 2013 Sh2-71, a planetary nebula in Aquila Image Credit: The Gemini Observatory/AURA Sh2-71 (Sharpless 71) is an unusual and complex planetary nebula located about 3,260 light-years away from Earth in the northern constellation of Aquila (the Eagle). It is embroiled in a bit of controversy over its “birth parents”. Sh2-71 is the 71st [continue reading]