yes, greg, ngc 4755 seems to be a piece of cake, but it have many more stars, around a hundred. I tried to minimize the presence of neighbourhood, but there is a bad work at right-bottom side. Some stars in evidence there may not be part of cluster. At that moment, my intention was to capture the complete cluster, since it is not an usal registered field.
The great difficulty is to capture the stars colors with my set of photographic equipment and lack of filters, mainly for street-light pollution
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