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M53 & NGC5053

Graham Darke

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It’s two for one on globular clusters! When I saw how close these two were on Sky Safari I thought it might make a nice composition. M53 popped straight up on the screen when framing but NGC5053 wasn’t what I expected at all. It looks decidedly unlike a globular and more like an open cluster. I thought that it must be much more distant then...but no it’s almost the same distance from us as M53 (57,000 and 58,000 light years respectively). Further research showed that NGC5053’s status as a globular was doubted for many years and it was only spectroscopic analysis of the component stars that showed its true nature. This was 30 x 2 minutes. TEC140 and ASI071 camera. All controlled by ASI Air. 


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