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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
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M51 Ha-RGB, 





    
        

            sky-watcher (johny)
M51 Ha-RGB

M51 Ha-RGB

Technical card

Resolution: 2195x1451

Dates:April 1, 2017March 10, 2019March 23, 2019

Frames:
40x180" ISO800
70x60" (gain: 50.00) 5C
Optolong H-alpha 7nm 2": 40x180" (gain: 200.00) 5C

Integration: 5.2 hours

Darks: ~15

Avg. Moon age: 8.64 days

Avg. Moon phase: 43.37%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 2600282

RA center: 202.471 degrees

DEC center: 47.212 degrees

Pixel scale: 0.912 arcsec/pixel

Orientation: 0.920 degrees

Field radius: 0.333 degrees

Locations: Western Hungary, Páli, Hungary

Data source: Backyard

Description

Ha-7nm : SW Quattro10S / 40 x 3min ASI 174mm
Lum : SW Quattro10S / 70 x 1min ASI 174mm
Colour : SW BD 150/750 40 x 3min ISO800/ EOS 60da (2017 April)

Comments

Author

sky-watcher
sky-watcher (johny)
License: None (All rights reserved)
6358
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Revisions

  • M51 Ha-RGB, 





    
        

            sky-watcher (johny)
    Original
  • Final
    M51 Ha-RGB, 





    
        

            sky-watcher (johny)
    B

Sky plot

Sky plot

Histogram

M51 Ha-RGB, 





    
        

            sky-watcher (johny)