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Contains:  NGC 4657, NGC 4656, NGC 4631, NGC 4627
Getting plate-solving status, please wait...
NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel
NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy

NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy

Technical card

Resolution: 2674x1765

Dates:May 5, 2018

Frames:
Baader B 31mm: 80x60" (gain: 120.00) -20C bin 2x2
Baader G 31mm: 80x60" (gain: 120.00) -20C bin 2x2
Baader L 31mm (UV & IR cut): 100x60" (gain: 120.00) -20C bin 2x2
Baader R 31mm: 80x60" (gain: 120.00) -20C bin 2x2

Integration: 5.7 hours

Darks: ~80

Flats: ~320

Avg. Moon age: 19.84 days

Avg. Moon phase: 73.59%

Bortle Dark-Sky Scale: 4.00

Mean FWHM: 3.50

Astrometry.net job: 3011752

RA center: 12h 42' 54"

DEC center: +32° 21' 21"

Pixel scale: 1.310 arcsec/pixel

Orientation: 300.523 degrees

Field radius: 0.583

Locations: Backyard, Nuremberg, Germany

Data source: Backyard

Description

My first LRGB.

Comments

Author

fschiel
Falk Schiel
License: Attribution-NonCommercial-NoDerivs Creative Commons
1760
Like

Revisions

  • NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel
    Original
  • NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel
    B
  • NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel
    C
  • NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel
    D
  • NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel
    E
  • Final
    NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel
    F

C

Modified workflow

E

... still a lot to learn about LRGB. :)

F

Reprocessed '18 data

Sky plot

Sky plot

Histogram

NGC 4631 - NGC 4656 / Whale Galaxy and Hockey Stick Galaxy, 





    
        

            Falk Schiel