Messier 28
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Globular cluster Messier 28 |
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| High-resolution images from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Sagittarius |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 18 h 24 m 32.9 s |
| declination | −24 ° 52 ′ 11 ″ |
| Appearance | |
| Concentration class | IV |
| Brightness (visual) | 7.66 likes |
| Brightness (B-band) | 8.73 likes |
| Angular expansion | 11.2 ' |
| Physical data | |
| Integrated spectral type | F8 |
| Redshift | (53 ± 3) · 10 −6 |
| Radial velocity | (15.8 ± 1.0) km / s |
| distance | 18.3 kLj (5.6 kpc ) |
| diameter | 60 ly |
| history | |
| discovery | Charles Messier |
| Discovery date | July 27, 1764 |
| Catalog names | |
| M 28 • NGC 6626 • C 1821-249 • GCl 94 • | |
Messier 28 (also known as NGC 6626) is a +7.66 mag bright globular cluster with an area of 11.2 'in the constellation Sagittarius . It is about 18,000 light years away from the solar system and has a diameter of about 60 light years.
The object was discovered on July 27, 1764 by the French astronomer Charles Messier .
Web links
Commons : Messier 28 - album with pictures, videos and audio files
Individual evidence
