Arp 30 (NGC 6365)
Arp 30 is such a tiny and delicate galaxy that it is
difficult to make out the One Heavy Arm. I don't find it easy even in Dr.
Arp's Atlas image. The Atlas note is "comp. appears physically connected
to flat-on spiral system".
There seems to be some dispute about the NGC designation of this object. I've identified it as NGC 6365 but it is variously listed as 6365, 6365 and 6365B, or 6365A and B. These naming issues are very frequent, even for well-studied objects.
10-inch Newtonian, StarlightXpress MX716, 25 minutes