Messier 23
From Infogalactic: the planetary knowledge core
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File:M23map.png
Map showing the location of M23
Messier 23 (also known as NGC 6494) is an open cluster in the constellation Sagittarius. It was discovered by Charles Messier on June 20, 1764.
M23 is at a distance of about 2,150 light-years away from Earth, its radius is around 15-20 light years. There are some 150 identified members in this cluster, the brightest being of magnitude 9.2. M23 can be found with a modestly sized telescope in the rich starfields of the Sagittarius Milky Way.
External links
- Messier 23, SEDS Messier pages
- Messier 23 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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Coordinates: 
17h 56m 48s, −19° 01′ 00″
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