M81 is one of the brightest galaxies in the night sky. It is located 11.6 million light-years from Earth in the constellation Ursa Major and has an apparent magnitude of 7. The galaxy’s central bulge contains much older, redder stars. It is significantly larger than the Milky Way’s bulge. A black hole of 70 million solar masses resides at the center of M81 and is about 15 times the mass of the Milky Way’s central black hole.

RIG1:
ASI 533MC Pro (gain 101, offset 40, -10°C)
ZWO OAG & ASI 120MM for guiding
Skywatcher 130PDS f5 with 1X coma corrector
Optolong L-Pro filter
RIG2:
TS Photoline 60ED APO
ZWO ASI 715MC (gain 50, offset 40)
Svbony CLS filter

Skywatcher EQM-35 Pro

Pixinsight, Photoshp