Messier 70

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Messier 70
Observation data (J2000 epoch)
Class V
Constellation Sagittarius
Right ascension 18h 43m 12.64s[1]
Declination -32° 17′ 30.8″[1]
Distance 29.3 kly[citation needed] (9 kpc)
Apparent magnitude (V) +9.06[1]
Apparent dimensions (V) 8′.0
Physical characteristics
Mass kg ( M{\odot})
Radius 34 ly[2]
Other designations M70, NGC 6681, GCl 101[1]
See also: Globular cluster, List of globular clusters
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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, Globular Cluster M69. Only 2 variable stars are known within this cluster.

[edit] External links

[edit] References

  1. ^ a b c d SIMBAD Astronomical Database. Results for NGC 6681. Retrieved on 2006-11-17.
  2. ^ distance × sin( diameter_angle / 2 ) = 34 ly. radius


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