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.





Dan Crowson                          dcrowson@...
Dardenne Prairie MO