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Contains:  IC 4277, IC 4278, IC4278, M 51, M51, NGC 5194, NGC 5195, NGC5195, Whirlpool Galaxy, Whirlpool galaxy
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M51 The Whirlpool Galaxy (LHaRGB) - 26 April 2020, 



    
        

            Geof Lewis
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M51 The Whirlpool Galaxy (LHaRGB) - 26 April 2020

Technical card


Dates:April 22, 2020April 25, 2020April 26, 2020

Frames:
Astronomik B 1.25" Type IIc: 24x300" -10C bin 2x2
Astronomik G 1.25" Type IIc: 24x300" -10C bin 2x2
Astronomik Ha 1.25" 6nm: 11x900" -10C bin 2x2
Astronomik L 1.25" Type IIc: 36x600" -10C bin 2x2
Astronomik R 1.25" Type IIc: 24x300" -10C bin 2x2

Integration: 14.8 hours

Darks: ~20

Flats: ~20

Flat darks: ~20

Bias: ~20

Avg. Moon age: 11.43 days

Avg. Moon phase: 5.41%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 21.37


Astrometry.net job: 3465072

RA center: 13h 29' 55"

DEC center: +47° 12' 27"

Pixel scale: 0.854 arcsec/pixel

Orientation: 90.961 degrees

Field radius: 0.238 degrees


Resolution: 1608x1198

Data source: Backyard

Description

Here's my first attempt at an LHaRGB image of the whirlpool galaxy M51. My two previous attempts at this beautiful target were some 7 and 5 years ago both with a DSLR and in my early days of AP, so I thought it was about time to let my QSI583wsg-5 camera and C14 have a go at it.

Comments

Author

geoflewis
Geof Lewis
License: None (All rights reserved)
1880
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Revisions

  • M51 The Whirlpool Galaxy (LHaRGB) - 26 April 2020, 



    
        

            Geof Lewis
    Original
  • Final
    M51 The Whirlpool Galaxy (LHaRGB) - 26 April 2020, 



    
        

            Geof Lewis
    C

C

Description: Reduced blue saturation and ran it through a trial of Topaz Denoise

Sky plot

Sky plot

Histogram

M51 The Whirlpool Galaxy (LHaRGB) - 26 April 2020, 



    
        

            Geof Lewis