Head of Seagull - IC 2177 in Monoceros

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Scope: C8 at f/4.1,  Location: Blair Valley, Anza Borrego Desert, CA   20 January 2007,   Camera: Artemis285

Exposure: 8 x 480 sec H-Alpha (1x1), 8 x 90 sec RGB Exposures (2x2). 

Processing: Images were captured  with Artemis Capture (as FITs).  Aligned/stacked in Registax 3 and saved as FITS. Luminance,  H-Alpha  and Color channels were scaled and  color balanced in Astroart. Channels were co-registered in Astroart.  Curves and Levels applied in Photoshop to optimize object features. Luminance construction consisted of the H-Alpha exposure. Final LRGB combine was done in Photoshop using Luminance Layering (or LLRGB) - G2V calibration factors were applied.  PixInsight SGBNR  noise reduction was lightly applied to the background . Selective sharpening was applied to nebula features in Photoshop with a layer mask.  Final Image size is approximately 1392x1044.

 North is up in this image. This nebula structure is the "head" of the larger "Seagull Nebula" cataloged as IC 2177 and GUM-1. A full wide field view of the full IC 2177 "Seagull Nebula" is here.   The Horizontal FOV is 37'.

Image center is located approximately - Equatorial 2000: RA: 07h 04m 25s Dec: -10°27'15"

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

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