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Sharpless 162 (Bubble) Region in Cassiopeia



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: +6131'03"


All images and content remain the property of Jim Thommes - copyright 2003 - 2015 copyright 2003 - 2012

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