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Contains:  M 12, NGC 6218
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M12, 





    
        

            Simon
M12

M12

Technical card

Resolution: 3906x2648

Astrometry.net job: 2702312

RA center: 251.800 degrees

DEC center: -1.943 degrees

Pixel scale: 0.309 arcsec/pixel

Orientation: 183.619 degrees

Field radius: 0.203 degrees

Data source: Public amateur data

Description

I decided to have a go at processing the other one of the two globulars based on my personal widefield image from the other night, using Jim Misti's data once more. In procesing this I stumbled across a variation on my method I had not particularly used before.

I have often tried to bring out everything that is within the luminance image in order that the details in the overall image can emerge most fully. However, in so doing I have always found when combining it with the RGB, I often lose some of the star colour. Maybe this is just so with this particular image, but I suspect not. So I tamed back the luminance, and behold much of the star colour was retained from the RGB. I then tweaked it a little afterwards. I think this is an improvement anyway... It was 16 x 1 minutes in luminance and 6 x 1 minutes each in R, G and B. Image acquisition Jim Misti. Thanks everyone.

Comments

Author

downingsimon
Simon
License: None (All rights reserved)
921
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M12, 





    
        

            Simon