Which cluster? Certainly not IC 2602!
Hi Trevor & All,
I'm certain the cluster is NGC 3293 -- Herschel's Gem Cluster. I personally believe it to be the best O.C in the sky for 8" and above 'scopes.
The nebula is indeed NGC 3324 -- visible easily within the same field in 8-10" 'scopes with a filter.
I've attached a Megastar map with the same orientation as the image and a similar image scale -- N is basically left and E is down.
Hope that helps.
Best,
Les D
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