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LBN 535 and vdB 149, 150



Scope: FSQ-106N at f/5, Location:  DAA Observatory, Shelter Valley CA,   24 June 2017  Camera: Atik 383 (Astronomik Gen II  LRGB filters)

Exposure: Exposure: 15 x 12 min, (1x1 bin) exposure with UV/IR block,  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 and equalization, rough color calibration, gradient removal - Astroart.  Curves, Levels, RGB combine - ImagesPlus, Luminance layering and finishing  - Photoshop. This image is an LRGB combine with Luminance layering. Final color calibration - eXcalibrator. The Luminance construction was the Luminance exposures. Color saturation in LAB color.    Native image size - 3354x2529.  Final Image size is approximately 2600x1950.

North is up in this image. This field lies within the constellation of Cepheus. The overall area of nebulosity is known as LBN 535. The smaller blue reflection nebulae are vdB 149 and vdB 150 - also known as LBN 541 and LBN 546 respectively. The dusty patch at the left is a dark nebula known as LDN 1235 and Dobashi 3509. The galaxy at the right of the image is UGC 11861 (SABdm). This galaxy has been active with recent supernovas (SN 1995aq, SN 1997db, SN 2011dm).  The bright star on the right (HD209369) is 122 light years distant; the bright star on the left (HD211300) is 881 light years distant. The vdB nebulae are about 1,000 light years distant. UGC11861 is about 58 million light years distant. These objects  and some of the bright stars are identified in the annotated image. This image replaces an earlier image in the Archives here  Horizontal FOV is 120'

Image center is approximately - Equatorial 2000: RA: 22h 06m 26s Dec: +7309'56" 


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