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Contains:  M 101, NGC 5422, NGC 5457, NGC 5474, NGC 5485
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M101 Pinwheel Galaxy, 


M101 Pinwheel Galaxy
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M101 Pinwheel Galaxy

Acquisition type: Electronically-Assisted Astronomy (EAA)

Technical card

Dates:March 15, 2020

Frames: 75x120"

Integration: 2.5 hours

Avg. Moon age: 21.22 days

Avg. Moon phase: 59.84%

Basic astrometry details job: 3323045

RA center: 14h 2' 57"

DEC center: +54° 20' 45"

Pixel scale: 1.217 arcsec/pixel

Orientation: 262.575 degrees

Field radius: 1.642 degrees

Resolution: 8064x5411

Data source: Backyard


The Pinwheel Galaxy is a face-on spiral galaxy distanced 21 million light-years away from Earth in the constellation Ursa Major. Discovered by Pierre Méchain on March 27, 1781, it was communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.



License: None (All rights reserved)

Sky plot

Sky plot


M101 Pinwheel Galaxy,