M47 in Puppis
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Scope: Megrez 80 mm APO at f/5.8, Location: Blair Valley, Anza Borrego Desert, CA 22 December 2011 Camera: Artemis285
Exposure: 10 x 3 min (1x1 bin) exposure with UV/IR block, 10 x 1 min (2x2 bin) RGB exposures.
Processing: Images were captured with Artemis Capture (as FITs). Aligned/stacked and dark subtracted in Astroart with Sigma Combine. IR / UV Blocking filter and Color channels were scaled and color balanced in Astroart. Channels were co-registered in Astroart. Central gradient was removed in Astroart. Luminance channel consisted of the IR/UV blocking filter exposures. Curves and Levels applied in Photoshop to the Luminance channel to optimize star depth. Final LRGB combine was done in Photoshop. Final Image size is approximately 1800 x 1350.
North is up in this image. This cluster, M47, a coarse cluster with a small number of bright stars located in the constellation of Puppis. The estimated distance from Earth is 1,600 light years. . Horizontal FOV is 67'
Image center is approximately - Equatorial 2000: RA: 07h 36m 36s Dec: -14°30'00"
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