Sharpless 132 in Cepheus



Scope: Megrez II  f/5.9 Location: Dos Picos Park, Ramona, CA   7 November 2008  Camera: Artemis285

Exposure:  12 x 8 min H-Alpha,  8 x 2 min RGB 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.  A light background noise reduction was applied to the luminance construction in PixInsight LE (SBNR).   Final LRGB combine was done in Photoshop using Luminance Layering in LAB color Space.  A light sharpening was applied to nebula regions.   Final Image size is approximately 1092 x 1044.

All exposures in this image were guided; North is up in this image.  Sharpless - 132 is a region of emission nebulosity in the constellation of Cepheus. The nebulosity is hydrogen gas excited to self emission by intense nearby stars.   The Horizontal FOV is 64'.

Image center is located approximately - Equatorial 2000: RA: 22h 19m 51s Dec: +5608'10"


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