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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
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M51 And Its Justifiable Replacement, 


            Robert Churan
M51 And Its Justifiable Replacement

M51 And Its Justifiable Replacement

Technical card

Resolution: 5000x3450

ZWO Blue 1.25": 15x256"
ZWO Green 1.25": 15x256"
ZWO Luminance 1.25": 45x256"
ZWO Red 1.25": 14x256"

Integration: 6.3 hours

Darks: ~50

Flats: ~50

Bias: ~50 job: 2487787

RA center: 202.469 degrees

DEC center: 47.197 degrees

Pixel scale: 0.380 arcsec/pixel

Orientation: 359.371 degrees

Field radius: 0.320 degrees

Data source: Backyard


A grand design spiral interacting galaxy 25 million light years away in Canes Venatici. The galaxy gets the beautiful spiral structure from the companion, NGC 5195, which likely passed through its disk 500-600 million years ago. The magnitude +8.4 galaxy has an estimated diameter of 60,000 light years.



Robert Churan
License: None (All rights reserved)

Sky plot

Sky plot


M51 And Its Justifiable Replacement, 


            Robert Churan