Messier 70
| Messier 70 | |
|---|---|
| 250px | |
| Observation data (J2000 epoch) | |
| Class | V[1] |
| Constellation | Sagittarius |
| Right ascension | 18h 43m 12.76s[2] |
| Declination | –32° 17′ 31.6″[3] |
| Distance | 29.4 kly (9.0 kpc)[4] |
| Apparent magnitude (V) | +9.06[3] |
| Apparent dimensions (V) | 8′.0 |
| Physical characteristics | |
| Mass | 1.79×105[4] M☉ |
| Radius | 34 ly[5] |
| Metallicity | –1.35[6] dex |
| Estimated age | 12.80 Gyr[6] |
| Other designations | M70, NGC 6681, GCl 101[3] |
Messier 70 (also known as M70 or NGC 6681) is a globular cluster in the constellation Sagittarius. It was discovered by Charles Messier in 1780.
M70 is at a distance of about 29,300 light years away from Earth and close to the Galactic Center. It is roughly the same size and luminosity as its neighbour in space, M69. Only two variable stars are known within this cluster.
Gallery
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Messier70-HST-Potw1215a.jpg
Picture obtained with the Wide Field Camera of Hubble’s Advanced Camera for Surveys. The field of view is around 3.3 by 3.3 arcminutes.[7]
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M70map.png
Map showing location of M70 (Roberto Mura)
References
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<references />, or <references group="..." />External links
- Messier 70, SEDS Messier pages
- Messier 70, Galactic Globular Clusters Database page
- Messier 70 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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Wikimedia Commons has media related to Messier 70. |
Coordinates: 
18h 43m 12.64s, −32° 17′ 30.8″
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This star cluster–related article is a stub. You can help Wikipedia by expanding it. |
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