M108 & M97

Hi ApodGrag Team !

A classic of the spring sky: the duo of the galaxy M108 with the Owl planetary nebula (M97) in Ursa Major.

M97 is 2000 lyght-year away ; and M108 is 32 millions LY away.

I completed the LRGB with exposures with Ha and especially OIII, in order to gain signal on M97: the much more faint outer ring of M97, not so often seen, is visible.Some pretty little galaxies are visible in the background.

Setup : TSA 102 – AZEQ6 – Atik Cameras One6.0 (-20°) – Filtrers : Astronomik (Ha/OIII : 6nm).
L : 36 x 600s bin1
RGB : 3 x 24 x 300s bin 2
Ha : 12 x 600s bin 1
OIII : 18 x 600s bin 1 + 12 x 600s bin2
Total : 19h

3, 4 & 5 april 2021 – Fouras (France)

Full version here : https://astrob.in/1tfozj/0/

Hope you will like it ! 🙂
Jean-Baptiste

Autore: Jean-Baptiste Auroux (sito)