Messier 67
Messier 67 (also known as M67 or NGC 2682) and sometimes called the King Cobra cluster or the Golden Eye cluster is an open cluster in the southern, equatorial half of Cancer. It was discovered by Johann Gottfried Koehler in 1779. Estimates of its age range between 3.2 and 5 billion years. Distance estimates are likewise varied, but typically are 800–900 parsecs (2,600–2,900 ly). Estimates of 855, 840, and 815 pc were established via binary star modelling and infrared color-magnitude diagram fitting.
| Messier 67 | |
|---|---|
Open cluster Messier 67 in Cancer | |
| Observation data (J2000.0 epoch) | |
| Right ascension | 08h 51.3m |
| Declination | +11° 49′ |
| Distance | ~2.61–2.93 kly (800–900 pc) |
| Apparent magnitude (V) | 6.1 |
| Apparent dimensions (V) | 30.0′ |
| Physical characteristics | |
| Radius | 10 ly |
| Estimated age | 3.2 to 5 billion years |
| Other designations | NGC 2682, Cr 204 |
| Associations | |
| Constellation | Cancer |
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