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Sharpless 278 in Orion



Scope: WO Zenithstar 66 APO at f/4.5, Location: Dos Picos Park, Ramona, CA   17 January 2009  Camera: Artemis285

Exposure:  8 x 12 min H-Alpha (1x1 bin),  8 x 2 min RGB Exposures (2x2 bin) 

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.  Central Gradient was removed 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 and noise reduction  was applied to the final image.   Final Image size is approximately 1392 x 1044.

All exposures in this image were guided; North is up in this image.  Sharpless - 278 is a region of emission nebulosity in the constellation of Orion. The nebulosity is hydrogen gas excited to self emission by intense nearby stars.  The Horizontal FOV is 100'.

Image center is located approximately - Equatorial 2000: RA: 05h 19m 48s Dec: -0539'49"


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

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