Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  M 81  ·  NGC 3031
Getting plate-solving status, please wait...
M 81 Bode's Galaxy, Holmberg IX Galaxy & faint IFN, Roland Schliessus
Powered byPixInsight

M 81 Bode's Galaxy, Holmberg IX Galaxy & faint IFN

Getting plate-solving status, please wait...
M 81 Bode's Galaxy, Holmberg IX Galaxy & faint IFN, Roland Schliessus
Powered byPixInsight

M 81 Bode's Galaxy, Holmberg IX Galaxy & faint IFN

Equipment

Loading...

Acquisition details

Loading...

Description

North up

Messier 81 (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, in the constellation Ursa Major.

An active galactic nucleus harbors a 70 million M☉ supermassive black hole.

Messier 81 was first discovered by Johann Elert Bode on 31 December 1774.

Consequently, the galaxy is sometimes referred to as "Bode's Galaxy"

Holmberg IX is a dwarf irregular galaxy and a satellite galaxy of M81. The galaxy is named after Erik Holmberg who first described it.

An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. Irregular galaxies do not fall into any of the regular classes of the Hubble sequence, and they are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure.

---------------------------- Infos based on Wikipedia ----------------------------


Filter Baader36mm, ungefasst

Comments