M 55
M 55 |
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Object data of M55 |
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| Object type: | globular cluster (XI) | |||||||
| Size: | 19.1' | |||||||
| Magnitude: | 6.3 mag | |||||||
| Constellation: | Sgr | |||||||
| Distance: | 17,000 Ly | |||||||
| Notes: |
Messier 55 is a quite large globular star cluster in the constellation Sagittarius, but has a very loose appearence. |
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Exposure data |
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| Date: | 2010-08-09 | |||||||
| Location: | Australia - Northern Galactic Members Telescope (Remote) | |||||||
| Telescope: | 16'' RCOS (f=3700mm) | |||||||
| Camera: | Apogee U9000 with Astrodon filters | |||||||
| Binning: | L 1x1 / RGB 1x1 | |||||||
| Exposure time: | L 14x3m / R 7x5m / G 7x5m / B 7x5m | |||||||
| Exposure time total: | 2h 27m | |||||||
| Notes: | Image acquisition by Herbert Walter; image processing by Bernhard Hubl | |||||||
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