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Contains:  IC 4277, M 51, NGC 5194, NGC 5195, Whirlpool Galaxy
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M51 - Whirlpool Galaxy - Mar 2020 v1 crop, 


            Martin Junius
M51 - Whirlpool Galaxy - Mar 2020 v1 crop
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M51 - Whirlpool Galaxy - Mar 2020 v1 crop

Technical card

Dates:March 21, 2020March 22, 2020March 23, 2020March 24, 2020March 25, 2020March 26, 2020March 27, 2020

Astronomik L 2: 102x400" (gain: 60.00) -10C bin 1x1
Optolong L-eNhance 2": 47x900" (gain: 120.00) -10C bin 1x1

Integration: 23.1 hours

Darks: ~17

Flats: ~102

Flat darks: ~42

Avg. Moon age: 12.75 days

Avg. Moon phase: 3.55%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 19.71

Temperature: 3.00

Basic astrometry details job: 3428248

RA center: 13h 29' 53"

DEC center: +47° 11' 49"

Pixel scale: 0.864 arcsec/pixel

Orientation: 359.949 degrees

Field radius: 0.350 degrees

Resolution: 2428x1619

Locations: Dellbrück, Köln, NW, Germany

Data source: Backyard


Drizzle integration and ~25% crop of the original FOV.
Not quite the optimal setup for the galaxy season, but hopefully decent enough. ;-)



Martin Junius
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


M51 - Whirlpool Galaxy - Mar 2020 v1 crop, 


            Martin Junius