Messier Index/M62

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Messier 62
Messier 62 Hubble WikiSky.jpg
Messier 62 by w:Hubble Space Telescope; 1.65′ view
Credit: w:NASA/w:STScI/w:WikiSky
Observation data (w:J2000 epoch)
Class IV
Constellation w:Ophiuchus
Right ascension 17h 01m 12.60s[1]
Declination -30° 06′ 44.5″[1]
Distance 22.5 kly[citation needed] (6.9 kpc)
Apparent magnitude (V) +7.39[1]
Apparent dimensions (V) 15′.0
Physical characteristics
Mass kg ( M{\odot})
Radius 49 ly[2]
Other designations NGC 6266, GCl 51[1]

Messier 62 (also known as M62 or NGC 6266) is a w:globular cluster in the w:constellation w:Ophiuchus. It was discovered in w:1771 by w:Charles Messier.

M62 is at a distance of about 22,500 w:light-years from w:Earth and measures some 100 light-years across. From studies conducted in the 1970s it is known that M62 contains the high number of 89 w:variable stars, many of them of the w:RR Lyrae type. The globular also contains a number of w:x-ray sources, thought to be close w:binary star systems, and millisecond w:pulsars in binary systems.

w:Globular Cluster Messier 62 - Courtesy Hunter Wilson

External links

References

  1. a b c d "SIMBAD Astronomical Database". Results for NGC 6266. http://simbad.u-strasbg.fr/Simbad. Retrieved 2006-11-17. 
  2. distance × sin( diameter_angle / 2 ) = 49 ly. radius