Barnard Loop and NGC 2112
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Scope: Vivitar 180 mm SLR lens at f/4.0 Location: Blair Valley, Anza Borrego Desert, CA 20 December 2008 Camera: Artemis285
Exposure: 8 x 10 min H-Alpha (1x1 bin), 8 x 2 min RGB (2x2 bin) Exposures
Processing: Images were captured with Artemis Capture (as FITs). Aligned/stacked and dark subtracted in Astroart with Sigma Combine. H-Alpha and Color channels were scaled and color balanced in Astroart. Channels were co-registered in Astroart. Luminance construction consisted of the H-Alpha exposure. Curves and Levels applied in Photoshop to the Luminance construction to optimize object features. Final LRGB combine was done in Photoshop using Luminance Layering in LAB color Space. A color adjustment was made at low signal levels to attenuate blue and green and amplify red. A light background noise reduction was applied in PixInsight LE (SBNR). Final Image size is approximately 1392x1040.
All exposures in this image were guided; North is up in this image. Barnard loop is a structure spanning about 10 degrees of sky. This image is the brightest part of Barnard's loop - about 3 degrees. The star cluster at the top of the image is NGC2112. The Vertical FOV is 180'.
Image center is located approximately - Equatorial 2000: RA: 05h 54m 01s Dec: -00°12'56"
All images and content remain the property of Jim Thommes - copyright 2003 - 2012
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