Messier Index/M62
Appearance
Messier 62 | |
---|---|
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) |
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.
External links
- Messier 62, SEDS Messier pages
- Messier 62, Galactic Globular Clusters Database page
- M62 on willig.net