R136c
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Dorado |
| Right ascension | 5h 38m 42.90s |
| Declination | −69° 06′ 04.83″ |
| Apparent magnitude (V) | 12.86 |
| Characteristics | |
| Evolutionary stage | Wolf–Rayet star |
| Spectral type | WN5h |
| Astrometry | |
| Distance | 163,000 ly (49,970 pc) |
| Absolute magnitude (MV) | −7.9 |
| Orbit | |
| Period (P) | 17.2051 days |
| Eccentricity (e) | 0.31±0.08 |
| Semi-amplitude (K1) (primary) | 51±9 km/s |
| Details | |
| Mass | 142 M☉ |
| Radius | 40.7 R☉ |
| Luminosity | 3,800,000 L☉ |
| Temperature | 42,170 K |
| Rotational velocity (v sin i) | <200 km/s |
| Age | 1.8 Myr |
| Other designations | |
| BAT99 112, RMC 136c, VFTS 1025 | |
| Database references | |
| SIMBAD | data |
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R136c is a likely binary star located in R136, a tight knot of stars at the centre of NGC 2070, an open cluster weighing 450,000 solar masses and containing 10,000 stars. At 142 M☉ and 3.8 million L☉, it is one of the most massive stars known and one of the most luminous, along with being one of the hottest, at over 40,000 K. It was first resolved and named by Feitzinger in 1980, along with R136a and R136b.