Arp 250

Posted by dcrowson
on Sunday, January 15, 2023
Arp 250 (PGC 21362) is what appears to be a couple odd galaxies interacting at the top right of the image. Part of Arp’s ‘Galaxies – Appearance of Fission’ class, there does appear to be two galaxy cores. This one is in Lynx near the border with Gemini.

PGC 2063674 is the oddly-distorted galaxy just to the left (east) of Arp 250.

NGC 2415 (UGC 3930, PGC 21399 and others) is the compact spiral near the bottom center. At approximately 186 million light-years away, this is the only galaxy with a known distance in the field of view.

Abell 590 is a cluster of at least 65 members which an average magnitude of 17.8. This one is found on the left side of the image.

Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 10:9:8x300s – 50:45:40 minutes each – binned 2x2

375 minutes total exposure – 6 hours 15 minutes

Imaged January 26th, 27th and 28th and December 24th and 25th, 2022 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.

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