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Barnard 11, 12, 13



Scope: FSQ-106N at f/5, Location: Blair Valley, Anza Borrego Desert, CA   14 November 2015  Camera: Atik 383L

Exposure: Exposure:  23 x 10 min (1x1 bin) exposure with IR/UV Block filter, 8 x 4 min (2x2 bin) RGB exposures.

Processing: Data Collection -  Sequence Generator Pro (as FITs).  Calibrated, stacked (Kappa Sigma Combine) - Deep Sky Stacker. LRGB channel registration and color equalization - Astroart.  Curves, Levels, RGB combine - ImagesPlus. Luminance Layering, final stretch, and finishing  - Photoshop. This image is a  RGB combine with Luminance layering.  Color saturation in LAB color; IR/UV Blocking filter exposure stack was used for the luminance layer.  Final Image size is approximately 2600 x 1950.

North is up in this image.  This image shows a region of Dark nebulae. The three main dark regions in this image are Dark nebulae more generally known as Barnard 11, 12, and 13.. Other Dark Nebula catalogs include objects in this field. There are ten objects from the Lynds Dark Nebula catalog and nine objects form the Dobashi  Catalog. There is considerable overlap among these three catalogs. These objects  as well as some of the brighter stars  are identified in the annotated image.  Horizontal FOV is 112'

Image center is approximately - Equatorial 2000: RA: 04h 27m 14.7s Dec: +5450'39"


All images and content remain the property of Jim Thommes - copyright 2003 - 2016 copyright 2003 - 2012

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