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Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away, with a diameter of 90,000 light years, about half the size of the Milky Way, in the constellation Ursa Major. Due to its proximity to Earth, large size, and active galactic nucleus, Messier 81 has been studied extensively by professional astronomers.
Description Sources: Wikipedia, theskylive.com, in-the-sky.org
Equipment & Integration
Imaging telescope: TS Photon 8" F5 Newtonian reflector
Imaging camera: Nikon D3500
Mount: Skywatcher HEQ-5 Pro Go-To
Guiding telescope: TS 80/600 F7.5 Achromat
Guiding camera: ZWO ASI 120MC-S
Coma corrector: TS GPU Superflat
Extras: -
Software: Adobe Photoshop 2020, DeepSkyStacker, PHD Guiding
Frames: 120s x 255 ISO 400
Integration: 8 hours 30 minutes
Date captured: 30/05/2020
Location: Athens, Greece
Bortle Scale (?): 8