Better late than never! Here is a sketch from my observation of Abell 39 two nights ago under reasonably dark skies at Xyliatos Reservoir, Cyprus. The pn was practically invisible without a filter (I...
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Better late than never! Here is a sketch from my observation of Abell 39 two nights ago under reasonably dark skies at Xyliatos Reservoir, Cyprus. The pn was practically invisible without a filter (I...
Hi Jeff, did you have an O III filter on? With 10" it might not be possible without it. We did spot it through a SW Flextube 12" with an O III filter a couple of years ago from 5,000ft on Papoutsa...