This
Astrobin Debut Object, also known as UGC 10396, is located 290 million light years away in the constellation of Draco at a declination of +52 degrees. This magnitude 15 object spans 1 arc-minute in our apparent view, which corresponds to a diameter of 90,000 light years. In his
Arp catalog, Dr. Arp classified this object into the category of Spiral Galaxies with Small, High Surface Brightness Companions on Arms.
I love the structure of this grand design spiral galaxy, with blue disjointed arms that extend for 360 degrees around the yellow core.
VV rows are seen in each arm.
Pertinent to Dr. Arp’s classification, 3 bright “companions” are seen in the outer regions of the disk, each about 10,000 light years long. The big question is whether or not these objects are true companions. None of these objects are identified as galaxies in any literature that I could find, nor is there distance information for them. Visually, they seem to be connected to UGC 10396 through faint star streams. I think it is unlikely that these are companions. They may be star clouds, perhaps remnants of a past merger.
I find it interesting that the other 2 small face-on galaxies in this image also shown a similar bright region in their outer disks.
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