Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  M 101, NGC 5457
Getting plate-solving status, please wait...
M101 - Pinwheel Galaxy (NGC 5457), 


            Ara Jerahian
M101 - Pinwheel Galaxy (NGC 5457)

M101 - Pinwheel Galaxy (NGC 5457)

Technical card

Resolution: 3336x2752

Dates:Feb. 6, 2019

ZWO Ha 7nm 1.25": 15x180" (gain: 139.00) -20C bin 1x1
ZWO LRGB 1.25" optimized for ASI1600: 60x180" (gain: 139.00) -20C bin 1x1

Integration: 3.8 hours

Darks: ~50

Flats: ~50

Flat darks: ~50

Bias: ~50

Avg. Moon age: 1.45 days

Avg. Moon phase: 2.35%

Bortle Dark-Sky Scale: 5.00 job: 2524000

RA center: 14h 3' 8"

DEC center: +54° 21' 32"

Pixel scale: 0.527 arcsec/pixel

Orientation: 45.756 degrees

Field radius: 0.316

Locations: Home, Cape Elizabeth, ME, United States

Data source: Backyard


The beautiful M101, a face-on spiral galaxy 21 million light-years away from us, located in Ursa Major.



Ara Jerahian
License: None (All rights reserved)

Sky plot

Sky plot


M101 - Pinwheel Galaxy (NGC 5457), 


            Ara Jerahian