Thread: Hickson Compact Group 68
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Old 17-05-2016, 07:55 AM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline 		 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Beautiful and fascinating, Rick.

What do you think causes the apparent sharp almost concave edge just below the two main ellipticals?
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