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Contains:  NGC 4931, NGC 4929, NGC 4926, NGC 4923, NGC 4921, NGC 4919, IC 4051, NGC 4911, NGC 4907, NGC 4896, NGC 4895, NGC 4889, NGC 4874, NGC 4865, IC 3949, NGC 4853, NGC 4850
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Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
Coma Cluster (Abell 1656)

Coma Cluster (Abell 1656)

Technical card

Resolution: 2749x2199

Dates:Feb. 23, 2019Feb. 25, 2019

Frames:
Astronomik LRGB 1,25": 39x300" -15C bin 2x2
Astronomik L 1.25": 28x600" -15C bin 1x1

Integration: 7.9 hours

Darks: ~64

Flats: ~16

Bias: ~101

Avg. Moon age: 20.14 days

Avg. Moon phase: 70.19%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 2744701

RA center: 195.101 degrees

DEC center: 27.897 degrees

Pixel scale: 1.530 arcsec/pixel

Orientation: 231.243 degrees

Field radius: 0.748 degrees

Locations: Fouras, Fouras, Charente-Maritime, France

Data source: Backyard

Description

The Coma Cluster is one of the largest cluster of galaxies known, that contains over 1,000 identified galaxies.

About 330 millions light-years away, its redshift is 0,0231, which is equivalent to a recession speed of nearly 7,000km per second.

Comments

Author

Jean-Baptiste_Paris
Jean-Baptiste Auroux
License: None (All rights reserved)
3344
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Revisions

  • Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
    Original
  • Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
    B
  • Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
    C
  • Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
    D
  • Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
    E
  • Final
    Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
    F
  • Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux
    G

B

Drizzle 2x annotated version

C

Correction of stars and background / brightness

D

Croped version

E

Croped version -2

F

Final full version with all corrections.

G

Final crop version

Sky plot

Sky plot

Histogram

Coma Cluster (Abell 1656), 





    
        

            Jean-Baptiste Auroux