R71 (star)
Location of R71 (circled), next to β Men | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Mensa |
| Right ascension | 05h 02m 07.394s |
| Declination | −71° 20′ 13.12″ |
| Apparent magnitude (V) | 8.7 - 9.9 - 11.2 |
| Characteristics | |
| Spectral type | LBV |
| U−B color index | −0.63 |
| B−V color index | +0.05 |
| Variable type | LBV |
| Astrometry | |
| Radial velocity (Rv) | 173.36±2.79 km/s |
| Proper motion (μ) | RA: 1.837 mas/yr Dec.: −0.121 mas/yr |
| Parallax (π) | 0.0330±0.0171 mas |
| Distance | 49,970 pc |
| Details | |
| Quiesecent | |
| Mass | 27 M☉ |
| Radius | 107 R☉ |
| Luminosity | 603,000 L☉ |
| Surface gravity (log g) | 1.80 cgs |
| Temperature | 15,500 K |
| Outburst 1975 | |
| Luminosity | 830,000 L☉ |
| Temperature | 12,600 K |
| Outburst 2012 | |
| Radius | 500 R☉ |
| Luminosity | 1,050,000 L☉ |
| Temperature | 6,650 K |
| Other designations | |
| HIP 23428, HD 269006, AAVSO 0503-71, 2MASS J05020738-7120131 | |
| Database references | |
| SIMBAD | data |
R71 (RMC 71, HD 269006) is a star in the Large Magellanic Cloud (LMC) in the constellation Mensa. It is classified as a luminous blue variable and is one of the most luminous stars in the LMC. It lies three arc-minutes southwest of the naked-eye star β Mensae.