Arp 256 galaxy pair
Arp 256, also known as the UGC 5304, is located in the constellation Cetus, and is best seen in winter.
Arp 256 is magnitude 13.6/14.3, and is in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.
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