Messier 57 - The Ring Nebula Credit: NASA/ESA HST, Spitzer ST, Giuseppe Donatiello RA: 283,387° Dec: 33,026 The Ring Nebula (Messier 57 or NGC 6720) is a planetary nebula in Lyra and it is illuminated by a central white dwarf or planetary nebula nucleus (PNN) of 15.75 visual magnitude. All the interior parts of this nebula have a blue-green tinge that is caused by the doubly ionized oxygen emission lines at 495.7 and 500.7 nm. In the outer region of the ring, part of the reddish hue…

The orion nebula region as captured from my backyard in Austin, Texas last Saturday night. I had been waiting for that perfect moonless night, free of clouds, but it just wasn't happening. The moon was 2/3 full and about 20 degrees away. I couldn't run very long exposures or high iso, but still I think this is my best effort so far. Still a work in progress, but getting there. Imaged with a CLS_CCD filtered canon 7D and 100-400mm lens at 400mm riding piggy back on Meade 8" LX200 classic…

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Eagle Nebula - Pillars of Creation

Looking back on the groundbreaking discoveries of NASA's little telescope that could