M 10
M 10 |
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Object data of Messier10 |
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| Object type: | Globular star cluster (VII) | |
| Size: | 20' | |
| Magnitude: | 6.6 mag | |
| Constellation: | Oph | |
| Distance: | 14,000 Ly | |
| Notes: | Messier 10 is a bright globular star cluster in the constellation Ophiuchus. It is notable for its high population of blue stragglers - stars that appear to be far younger than their neighbors. The stars in globular clusters are thought to have formed and aged together, so they should all be roughly the same age. These anomalous, bluer stars were created either by collisions between stars or other stellar interactions. Such events are easy to imagine in densely populated globular clusters, in which up to a few million stars are tightly packed together. | |
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Exposure data |
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| Date: | 2026-05-22 + 2026-05-23 | |
| Location: | Nussbach / Austria (400m) | |
| Telescope: | Alluna RC 16" with AFFR flattener-reducer 0.74x (f=2520mm) | |
| Camera: | QHY 268M with Baader CMOS filters | |
| Binning: | L 1x1 / RGB 1x1 | |
| Mount: | ASA DDM85 | |
| Exposure time: | L 34x2min / RGB 14x2min each | |
| Exposure time total: | 2h 32min | |
| Notes: | ||
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