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On this page I collect my observations of the open star cluster M 7 (Ptolemy's Cluster; NGC 6475) in the constellation Scorpius.
The open star cluster M 7 (Ptolemy's Cluster) in the constellation Scorpius forms, according to Stoyan, together with M 6 (Butterfly Cluster) an impressive cluster duo. But they are far too much apart to be seen together in the eVscope.
| M 7 (NGC 6475) |
| Size: 80' (Stoyan) Distance: 980 light years (Stoyan) Rating: **** (Stoyan) |
The open star cluster M 7 (Ptolemy's Cluster) in the constellation Scorpius, left of M 6 (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)
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M 7 - Aug 9, 2020, disturbed |
