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Sharpless 140 in Cepheus

 

CLICK ON IMAGE FOR FULL SIZE VIEW (2600x1950)

Scope: FSQ-106N at f/5, Location: Laguna Mountains, CA   30 August 2014  Camera: Atik 383L

Exposure: Exposure: 12 x 10 min  (1x1 bin)  Luminance exposure with IR/UV blocking filter and 8 x 10 min (2x2 bin) exposure with Hydrogen Alpha filter, 8 x 4.5 min (2x2 bin) RGB exposures.

Processing: Data Collection -  Artemis Capture (as FITs).  Calibrated, stacked (Kappa Sigma Combine) - Deep Sky Stacker. LRGB channel registration, equalization, and central gradient removal - Astroart.  Curves, Levels, RGB combine - ImagesPlus. Luminance Layering, final stretch, and finishing  - Photoshop. This image is a  HaL- RGB combine with Luminance layering.  Color saturation in LAB color; H-Alpha and Luminance exposure stacks were used for the luminance layer.   Processing was in up-sampled  data (to simulate 1x1 bin). Final Image size is approximately 2600 x 1950.

North is up in this image. In this image, Sharpless 140 (also known as  LBN 505 is the dominant emission / reflection nebula in the right side of the image.  Further right of Sharpless 140 is a small reflection nebula cataloged as  GN 22.12.3. The emission region on the left side of the image is not cataloged. In the center of the image is a darg region where there are several cataloged dark nebulae in the LDN and TGU catalog. These objects  as well as some of the brighter stars are identified in the annotated image.   Horizontal FOV is 120'

Image center is approximately - Equatorial 2000: RA: 22h 21m 29s Dec: +6328'13"

 

All images and content remain the property of Jim Thommes - copyright 2003 - 2014

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