| Melotte 186 | |
|---|---|
 Simulated image of Melotte 186 | |
| Observation data (J2000.0 epoch) | |
| Right ascension | 18h 01m 06.0s[1] |
| Declination | +02° 54′ 00″[1] |
| Distance | 652 ly (200 pc) |
| Apparent magnitude (V) | 3.0 |
| Apparent dimensions (V) | 240' |
| Physical characteristics | |
| Estimated age | 100 million years [2] |
| Other designations | Mel 186, Cr 359 |
| Associations | |
| Constellation | Ophiuchus |
Melotte 186 (also known as Collinder 359) is a large, loosely bound open cluster located in the constellation Ophiuchus. It has an apparent magnitude of 3.0[1] and an approximate size of 240 arc-minutes.
- ^ a b c "Cl Melotte 186". sim-id. Retrieved 2020-07-13.
- ^ Lodieu, N. (December 2005). "A study of the young open cluster Collinder 359". Astronomische Nachrichten. 326 (10): 1001–1006. Bibcode:2005AN....326.1001L. doi:10.1002/asna.200510436. ISSN 0004-6337.