LDN 115, 118, 122, 129, 132, 146
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ON IMAGE FOR FULL SIZE VIEW (2800x2105) Scope:
FSQ-106N at f/5, Location: Curiosity Peak Observatory, Julian, CA 13
June 2015
Camera: Atik 383L Exposure:
Exposure: 16 x 10 min (1x1 bin) exposure with IR/UV Block filter, 8 x 4
min (2x2 bin) RGB exposures. Processing: Data
Collection - Sequence Generator Pro (as FITs). Calibrated, stacked (Kappa
Sigma Combine) - Deep Sky Stacker. LRGB channel registration, equalization, and
central gradient removal - Astroart. Curves, Levels, RGB combine -
ImagesPlus. Luminance Layering, final stretch, and finishing - Photoshop.
This image is a RGB combine with Luminance layering. Color
saturation in LAB color; IR/UV Blocking filter exposure stack was used for the luminance
layer. Final Image size is approximately 2800 x 2105. North is up in this
image. This image shows a region of Dark nebulae. From the Lynd's Dark
Nebula catalog, this image contains designations of LDN 115, 118, 122,
129, 132, and 146. In addition there are several dark nebulae with designations
in the Dobashi and TGU dark nebula catalogs. There are a few background galaxies
in this image as well. One special surprise is the comet C/2014 R1 (Borisov)
located in the upper middle of the image. The comet moved over several arc
minutes during the exposure session and would appear as an amorphous blur
normally. However, special comet tracking processing was used in a blend with
normal processing to represent the comet more clearly in its "average"
position over the individual IR/UV Block exposure frames These
objects as well as some of the brighter stars are identified in the annotated
image. Horizontal FOV is 112' Image
center is approximately - Equatorial 2000: RA: 16h 55m
17s Dec: -16°11'03"
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