Messier 107
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Globular cluster Messier 107 |
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| Image taken by Messier 107 of the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Snake bearer |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 16 h 32 m 31.9 s |
| declination | −13 ° 03 ′ 13 ″ |
| Appearance | |
| Concentration class | X |
| Brightness (visual) | 7.8 likes |
| Angular expansion | 13.0 ' |
| Physical data | |
| Affiliation | Milky Way |
| Integrated spectral type | G0 |
| Redshift | (-1.13 ± 0.01) · 10 -4 |
| Radial velocity | −33.8 ± 0.3 km / s |
| distance | 20.9 kLj (6.4 kpc ) |
| history | |
| discovery | Pierre Méchain |
| Discovery date | April 1782 |
| Catalog names | |
| M 107 • NGC 6171 • C 1629-129 • GCl 44 • GC 4211 • h 3637 • H VI 40 | |
Messier 107 (also known as NGC 6171 ) is a 7.8 mag bright globular cluster in the constellation of the Serpent Bearer . The globular cluster has a fairly open structure and its edges, as can be seen in long-exposure photographs, extend up to a diameter of 13 '. Its distance is about 21,000 light years . M107 is rather unattractive for observers in Central Europe because of its southern position.
Web links
Commons : Messier 107 - album with pictures, videos and audio files
- M107 at SEDS
- ESO: A Swarm of Older Stars + Photo, Map & Animation - December 8, 2010
Individual evidence
- ↑ NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ Harlow Shapley, Helen B. Sawyer: A Classification of Globular Clusters . In: Harvard College Observatory Bulletin . tape 849 , 1927, pp. 11-14 , bibcode : 1927BHarO.849 ... 11S .
- ↑ a b SEDS : NGC 6171
- ↑ Seligman
