Arp 268 - Holmberg II

Posted by dcrowson
on Sunday, December 17, 2017

Arp 268 (UGC 4305, Holmberg II and others) is a Magellan type irregular galaxy located approximately 10.5 million light-years away in Ursa Major. Arp classifies this one in the “Galaxies (not classifiable as S or E) – irregular clumps” group. It is a member of the M81 group of galaxies.

The ring-like galaxy above and to the left is PGC 2738730. The interacting pair to the left are PGC 86836 and 2738669. These three would make for a good target for a much larger telescope.

Luminance – 25x600s – 250 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

370 minutes total exposure – 6 hours 10 minutes

Imaged October 27th, 28th, 29th and November 22nd, 2017 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.


To leave a comment you must be a member of our community.
Login to your account now, or register for an account to start participating.
No one has commented yet.

Join our Community!

Our community is FREE to join. To participate you must either login or register for an account.



Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.

Find us on Facebook