Sharpless 301 in Canis Major
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Scope: C8 at f/3.8, Location: Dos Picos Park, Ramona, CA 17 March 2007, Camera: Artemis285
Exposure: 8 x 420 sec H-Alpha (1x1), 8 x 90 sec RGB Exposures (2x2).
Processing: Images were captured with Artemis Capture (as FITs). Aligned/stacked in Registax 4 and saved as FITS. Luminance, H-Alpha and Color channels were scaled and color balanced in Astroart. Channels were co-registered in Astroart. Central Gradient removal was performed 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 1392x1040.
North is up in this image. This nebula structure is catalogued as one of the Sharpless objects - Sh2-301. It is located in the constellation of Canis Major about midway between the cluster pair M46, M47 and the cluster M41. The Horizontal FOV is 42'.
Image center is located approximately - Equatorial 2000: RA: 07h 09m 55s Dec: -18°30'07"
All images and content remain the property of Jim Thommes - copyright 2003 - 2012
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