Ngc 2158
Hi all, the other night I was observing M 35 when I noticed a little fuzzy thing that I 'thought' was a globular cluster. When I went in to log it I found out it was the open cluster NGC 2158.
This was puzzling to me so I did a little web searching and found out that in at least one of the earlier catalogs it was categorized as a -globular- cluster.
My question is a simple one; what is the 'scientific' way to discern between an open and a globular cluster?
Brian
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