Arp 259 - Hickson 31


Dan Crowson
 

Arp 259 (NGC 1741) appears to be in the center of a train wreck. Part of Arp’s ‘Galaxies (not classifiable as S or E) - Irregular clumps’ class, it is located approximately 186 million light-years away in Eridanus.

 

Hickson 31 consists of NGC 1741 above and another six or seven galaxies around it. All appear to be between 181 and 186 million light-years away by redshift.

 

IC 399 is the ball galaxy located below the above. Some sources include it as the seventh or ‘G’ galaxy in HCG 31.

 

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

360 minutes total exposure – 6 hours

 

Imaged January 26th, September 21st and 23rd and November 13th and 14th, 2020 Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/51626420118/sizes/l/

 

Dan

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Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com