UGC 10321
Hercules
RA
16 18 05
Dec
+21 33 13
A-LEDA 57765 V MAG 15.5
B-LEDA 20036 V MAG 17
C-LEDA 57770 V MAG 16
D-LEDA 200337 V MAG 17.8
All MAG are + or - from the SDSS photometry
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The UGC catalog calls this a multi galaxy group. It also has a VV catalog number VV129. I found the VV numbers really confusing. I hand labeled a image to make it simpler for me to discuss hear. This is for sure a compact group Paul Hickson missed in his famous catalog.

F92FB6BE-A4F8-4A49-9D38-93A17135410B.jpegF92FB6BE-A4F8-4A49-9D38-93A17135410B.jpeg

What makes this group so interesting to me is one of it’s galaxies B is way in the background. It has a light travel time of 1.55 billion light year’s. The other galaxies A C and D are interacting at 469 million light years away. This makes this group a rare chance alignment.

64A55FC2-9B92-458C-A183-0446B5A2A951.png

I observed this group several nights this last dark period. I found at 610X A B and D all looked like one long galaxy. I was surprised how easy B the most distant one was. I found D to be the most difficult of the group. I could only glimpse it every now and then. I only could see it with averted vision a small percentage of time. C galaxy was easy for me I could see it constantly.

This is a really interesting galaxy group although it is some what of a challenge object.I look forward to reading your results. As always———

Give It A GO!
Good Luck and Great Viewing