R71 (star)

For other uses, see R71.
R71
Location of R71 (circled), next to β Men
Observation data
Epoch J2000      Equinox J2000
Constellation Mensa
Right ascension 05h 02m 07.394s[1]
Declination −71° 20′ 13.12″[1]
Apparent magnitude (V) 8.7[2] - 9.9[3] - 11.2[4]
Characteristics
Spectral type LBV
U−B color index −0.63[5]
B−V color index +0.05[5]
Variable type LBV[2]
Astrometry
Radial velocity (Rv)173.36±2.79[1] km/s
Proper motion (μ) RA: 1.837[1] mas/yr
Dec.: −0.121[1] mas/yr
Parallax (π)0.0330 ± 0.0171 mas[1]
Distance49,970[2] pc
Details
Quiesecent
Mass27[2] M☉
Radius107[2] R☉
Luminosity603,000[2] L☉
Surface gravity (log g)1.80[2] cgs
Temperature15,500[2] K
Outburst 1975
Luminosity830,000[3] L☉
Temperature12,600[3] K
Outburst 2012
Radius500[6] R☉
Luminosity1,050,000[6][2] L☉
Temperature6,650[6] K
Other designations
HIP 23428, HD 269006, AAVSO 0503-71, 2MASS J05020738-7120131
Database references
SIMBADdata

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.

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