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On this page I collect my observations of the open star cluster M 6 (Butterfly Cluster; NGC 6405) in the constellation Scorpius.
The open star cluster M 6 (Butterfly Cluster) in the constellation Scorpius forms, according to Stoyan, together with M 7 (Ptolemy's Cluster) an impressive cluster duo. But they are far too much apart to be seen together in the eVscope.
| M 6 (NGC 6405) |
| Size: 25' x 20' (Stoyan) Distance: 1,600 light years (Stoyan) Rating: **** (Stoyan) |
The open star cluster M 6 (Butterfly Cluster) in the constellation Scorpius, to the right of M 7 (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)
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M 6 - May 29, 2020 |
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M 6 - Aug 9, 2020 |
