Messier 72
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Globular cluster Messier 72 |
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Aquarius |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 20 h 53 m 27.9 s |
| declination | −12 ° 32 ′ 13 ″ |
| Appearance | |
| Concentration class | IX |
| Brightness (visual) | 9.3 mag |
| Brightness (B-band) | 9.95 likes |
| Angular expansion | 6.6 ′ |
| Physical data | |
| Affiliation | Milky Way |
| Integrated spectral type | F7 |
| Redshift | −0.000960 ± 0.000030 |
| Radial velocity | (−289 ± 8) km / s |
| distance | approx. 55,000 ly |
| diameter | 106 ly |
| history | |
| discovery | Pierre Méchain |
| Discovery date | August 30, 1780 |
| Catalog names | |
| M 72 • NGC 6981 • C 2050-127 • GCl 118 • GC 4608 • | |
Messier 72 (also known as NGC 6981 ) is a 9.3 mag bright globular cluster with an angular extent of 6.6 ′ in the constellation Aquarius .
Web links
- M72 - a globular cluster - Astronomy Picture of the Day of May 12, 2010.
