NGC 188 in Cepheus
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Scope: Megrez II 80 mm APO at f/5.8, Location: Laguna Mountains, CA 2 September 2011 Camera: Artemis285
Exposure: 15 x 4 min (1x1 bin) exposure with UV/IR block, 8 x 2 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. 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 mirrored image. The star cluster NGC 188 is located in the constellation of Cepheus just over 4 degrees from the North celestial pole. It is considered one of the oldest open clusters in the Milky Way. NGC 188 distance to Earth is about 5,000 light years. Horizontal FOV is approximately 67'
Image center is approximately - Equatorial 2000: RA: 00h 45m 44s Dec: +85°18'38"
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