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Scope: ZenithStar 66 mm APO @ f/4.3 Location: Laguna Mountains, CA 12 September, 2009 Camera: Artemis285
Exposure: 12 x 6 min IR/UV Block, 7 x 3 min 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 construction consisted of the IR/UV blocking filter exposures. Curves and Levels applied in Photoshop to the Luminance construction to optimize object features. A light background noise reduction was applied to the luminance construction in PixInsight LE (SGBNR). Final LRGB combine was done in Photoshop using Luminance Layering. Final Image size is approximately 1400 x 1054.
All exposures in this image were guided; North is up in this image. These objects are patches of interstellar dust in the constellation of Cepheus. These dark nebulae are listed in Lynd's Dark Nebula catalog as LDN1158 and LDN1155 (toward the left); LDN1152 and LDN1157 (along the upper part of the image); and LDN1147 (lower center). The Horizontal FOV is 101'.
Image center is located approximately - Equatorial 2000: RA: 20h 40m 01s Dec: +67°34'12"