M 7 - Ptolemy's Cluster
M 7 - Ptolemy's Cluster |
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Object data of M7 |
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| Object type: | open cluster (I3r) | |
| Size: | 80' | |
| Magnitude: | 3.0 mag | |
| Constellation: | Sco | |
| Distance: | 800 Ly | |
| Notes: |
Three further open star clusters can be found in the above image:
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Exposure data |
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| Date: | 2009-09-10 | |
| Location: | La Palma / Spain (1700m) | |
| Telescope: | Rubinar300 (2.5" Maksutov Cassegrain f=300mm) | |
| Camera: | EOS1000D (ISO400) | |
| Mount: | Astrotrac TT320X | |
| Exposure time: | 44x2m | |
| Exposure time total: | 1h 28m | |
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