Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away, in the constellation Ursa Major. Due to its proximity to Earth, large size, and active galactic nucleus (which harbors a 70 million M☉( supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy's large size and relatively high brightness also make it a popular target for amateur astronomers. This photo has been taken at 08.08.2018 - 16.08.218 in Kıbrısçık/Bolu/Turkey
Mount: Skywatcher EQ8 PRo
OTA: GSO 10" RC
Camera: Canon 60Da
Guide: Orion Starshoot Autoguider with f=400mm guide tube
Light Frames: 36 x 6' = 3h 36 min exposure, ISO= 800 Dark Frames: 10 x 6' min
Bias Frames: 50
Flat Frames: 10 Softwares: SGP, Backyard EOS, PHD, Pixinsight, Adobe Photoshop