M57 (Ring Nebula), July 1, 2010
M57: The Ring Nebula, magnitude 9.0.

Name: M57, The Ring Nebula
Camera: Nikon D700, prime focus
Telescope: Astro-Tech 8” f4.0 Imaging Newtonian
Mount: Atlas EQ-G
Shutter Speed: 30 seconds
ISO: 1600
Temperature: 69*F
42 lights
50 darks
ImagesPlus 3.82a, Nikon Capture NX2

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