< Messier Index 
 
        
      | Messier 68 | |
|---|---|
|  M68 from w:Hubble Space Telescope; 3.32′ view Credit: w:NASA/w:STScI/w:WikiSky | |
| Observation data (w:J2000 epoch) | |
| Class | X | 
| Constellation | Hydra | 
| Right ascension | 12h 39m 28.01s[1] | 
| Declination | -26° 44′ 34.9″[1] | 
| Distance | 33.3 kly[citation needed] (10.2 kpc) | 
| Apparent magnitude (V) | +9.67[1] | 
| Apparent dimensions (V) | 11′.0 | 
| Physical characteristics | |
| Mass | - kg (- M) | 
| Radius | 53 ly[2] | 
| VHB | - | 
| Estimated age | 11.2 Gyr | 
| Notable features | Relatively metal poor.[citation needed] | 
| Other designations | M68, NGC 4590, GCl 20[1] | 
Messier 68 (also known as M68 or NGC 4590) is a w:globular cluster in the w:Hydra constellation. It was discovered by w:Charles Messier in w:1780. M68 is at a distance of about 33,000 w:light-years away from w:Earth.
External links
References
- 1 2 3 4 "SIMBAD Astronomical Database". Results for NGC 4590. http://simbad.u-strasbg.fr/Simbad. Retrieved 2006-11-17.
- ↑ distance × sin( diameter_angle / 2 ) = 53 ly. radius
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