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M12 in Ophiuchus

 

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Scope: C8 f/8; Location: Del Mar, CA; 30 May. 2006; Camera: Artemis285

Exposure: 12 x 120 sec (1x1 bin) Luminance exposures with IR Block Filter, 8 x 60 sec (2x2 bin) RGB 

Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked in Registax 3 and saved as FITS. Luminance and Color channels were scaled and rough color balanced in Astroart. Central Gradient was removed in Astroart. Channels were co-registered in Astroart. Curves and Levels were applied in Photoshop to optimize object appearance. Final LRGB combine was done in Photoshop using Luminance Layering (or LLRGB). G2V color correction and final touches were done in Photoshop. SGBNR was used to smooth background noise on the final result. Final Image size is approximately 1392x1040.

This image was a guided image. M12 is located in the constellation of Ophiuchus. It is one of seven Messier Globulars in Ophiuchus. M12 is a low concentration class globular cluster and is much less concentrated toward the center. It is located at a distance of about 16,000 light years.  This image replaces an earlier image that can be seen in the Archives here. Horizontal FOV is about 20'

Image center is approximately - Equatorial 2000: RA: 16h 47m 14s Dec: -0156'50"

 

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

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