M81 Bode’s Galaxy in Ursa Major

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, in the con­stel­la­tion Ursa Major. M81 was first dis­covered by Johann Elert Bode on 31 Decem­ber 1774. Thus, it is some­times referred to as “Bode’s Galaxy”.

The galaxy lies in a region with dense Inter­galactic Flux (IFN) which can be seen in the back­ground. Left to M81, the irreg­u­lar galaxy Holmberg IX can be seen, a satel­lite galaxy of Messi­er 81.

[descrip­tion from wikipedia]

Details

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RCOS 14.5″ f/​8
ASA DDM85
Apo­gee U16M
Astro­don Gen2
LRGB 400:300:240:280 min.
ROSA Remote Obser­vat­or­ies South­ern Alps
© Mar­tin Ruster­holz, Astrophotographer

Find­er M81 Bode’s Galaxy in Ursa Major

M81 Galaxy Sky Chart Astrophotography Martin Rusterholz

Image cre­ated by Skychart

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