Arp 258

  Arp 258 is in the class Irregular Clumps.  The Atlas note says "resolution into knots on larger galaxy".  It would be easy to debate the number of galaxies versus galaxy fragments in this object.  In the UGC, the southeastern galaxy is 2140A and the irregular northern object is UGC 2140.  UGC 2140A is Hickson 18A, while UGC 2140 is broken up into 18B, C, and D in the Hickson catalog.  The two tiny galaxies just west of the southern tip of UGC 2140 do not show up at all in NED but they do have Mitchell Anonymous Catalog numbers.

Atlas Image

              

  10-inch Newtonian, StarlightXpress MX716, 23 minutes
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