Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  IC 3949  ·  IC 4040  ·  IC 4051  ·  NGC 4841  ·  NGC 4848  ·  NGC 4850  ·  NGC 4865  ·  NGC 4867  ·  NGC 4869  ·  NGC 4874  ·  NGC 4889  ·  NGC 4895  ·  NGC 4896  ·  NGC 4907  ·  NGC 4908  ·  NGC 4911
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Abell 1656 - Coma Cluster of Galaxies, 



    
        

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Abell 1656 - Coma Cluster of Galaxies
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Abell 1656 - Coma Cluster of Galaxies

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Abell 1656 - Coma Cluster of Galaxies, 



    
        

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Abell 1656 - Coma Cluster of Galaxies
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Abell 1656 - Coma Cluster of Galaxies

Technical card

Imaging telescopes or lenses: TS Optics UNC 12" f/4 newtonian

Imaging cameras: Atik 383L+ mono

Mounts: Skywatcher EQ-8

Guiding telescopes or lenses: TS Optics UNC 12" f/4 newtonian

Guiding cameras: Lodestar

Focal reducers: ASA 2" x 0,73 Corrector/Reducer 2KORRR

Filters: Astrolumina LRGB


Dates:Feb. 16, 2015

Frames:
12x600" (2h) -20C bin 1x1
36x180" (1h 48') -20C bin 2x2

Integration: 3h 48'

Avg. Moon age: 26.65 days

Avg. Moon phase: 9.11%


Basic astrometry details

Astrometry.net job: 547942

RA center: 12h 59' 13"

DEC center: +28° 6' 3"

Pixel scale: 1.225 arcsec/pixel

Orientation: 91.820 degrees

Field radius: 0.635 degrees


Resolution: 2776x2497

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Abell 1656 - Coma Cluster of Galaxies, 



    
        

            tuunari