LDN 1622 in Orion



Scope: ZenithStar 66 mm APO @ f/4.4 Location: Blair Valley, Anza Borrego Desert, CA   14 February, 2010  Camera: Artemis285

Exposure:  16 x 8 min IR/UV Block (1x1 bin),  7 x 8 min H-Alpha (1x1 bin),  7 x 3 min RGB Exposures (2x2 bin) 

Processing: Images were captured  with Artemis Capture (as FITs).  Aligned/stacked and dark subtracted in Astroart with Sigma Combine.   IR / UV Blocking  filter  and Color channels were scaled and  color balanced in Astroart.  Channels were co-registered in Astroart.   Luminance construction consisted of the IR/UV blocking filter exposures with a hard light blend of the H-Alpha exposures.  Curves and Levels applied in Photoshop to the Luminance construction to optimize object features.   H-Alpha exposures were blended with the Red channel (in a lighten blend - 15% opacity).  Final LRGB combine was done in Photoshop using Luminance Layering in LAB Color Space.  A light background noise reduction was applied to the image in PixInsight LE (SGBNR).   Final Image size is approximately 1393 x 1044.

All exposures in this image were guided; North is up in this image.  This object is a  patch of interstellar dust in the constellations of Orion.   The Horizontal FOV is 107'.

Image center is located approximately - Equatorial 2000: RA: 05h 54m 44s Dec: +0202'09"


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