Sharpless 162 (Bubble) Region in Cassiopeia
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ON IMAGE FOR FULL SIZE VIEW (2800x2100) Scope:
FSQ-106N at f/5, Location: Laguna Mountains, CA 5 September 2015
Camera: Atik 383L (Astronomik Ha LRGB filters) Exposure:
Exposure: 16 x 9 min (1x1 bin) exposure with H-Alpha filter, 10 x 6 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. RGB calibration - eXcalibrator. This image is a RGB combine
with Luminance layering. Color saturation in LAB color; H-Alpha exposure
stack was screen blended into the IR/UV Blocking filter exposure stack for the
luminance layer. Final Image size is approximately 2800 x 2100. North is up in this image.
This field has two relatively well known objects - the "Bubble Nebula"
NGC 7635 and the open cluster M52 (also known as NGC 7654). There are four
Sharpless objects in this image - Sharpless 158, 159, 161, 162. There is
the interesting planetary nebula, PN G112.5-00.1 in the lower left in this
field; a small open cluster, C2323+610; a reflection nebula, GN 23.15.3
near the central lower edge as well as several dark nebulae from the Lynds
Dark Nebula catalog. These objects
as well as some of the brighter stars are identified in the annotated
image. NGC 7635 is approximately 11,000 light years distant from
Earth; M52 is approximately 5,000 light years distant. Horizontal FOV is 116' Image
center is approximately - Equatorial 2000: RA: 23h 19m
12s Dec: +61°31'03"
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