Arp 69 (NGC 5579)

  Arp 69 is by far the largest in a field packed with galaxies.  It is another of Arp's class Spirals with Small HSB Companions on Arms.  The Atlas note is "three-armed spiral".  It is my guess that the companion is the small galaxy to the south, about halfway to the star.  However, I can't see on my image that the arm extends all the way to the companion, and I can't trace it in the Atlas image either.  But in many cases, the original plates probably show subtle features and details that can't be seen in the scanned images.

Atlas Image

             

  10-inch Newtonian, StarlightXpress MX716, 38 minutes
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