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M31, a study in gray tones

Technical card

Resolution: 2314x1746

Astrometry.net job: 1727632

Locations: Home observatory, Copenhagen, DK-2270 Kastrup, Denmark

Description

M31 shown "inversed" as a study in grey tones.
I took this M31 color submission, http://astrob.in/312071/0/
and made a BW version.
Merged these parts "inversed" into the Picture.
M31 center part,
https://www.dropbox.com/s/j0jhaihcnutqkjq/M31-Center-LUM.jpg?dl=0
M110 part,
https://www.dropbox.com/s/nwt8coxmyqb07q5/M110-LUM-SC.jpg?dl=0
NGC221 part,
https://www.dropbox.com/s/28t3ajs6jyhyyqf/NGC221-LUM.jpg?dl=0
All subs from these 3 close-up pictures were taken in the past with my 16" SCT setup.
Picture size shown is 50% of the full sized image and further enhancements done with PS CS6.
Kind regards Niels

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Author

Niels V. Christensen
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M31, a study in gray tones, Niels V. Christensen

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