Alpha Pavonis

α Pavonis
Location of α Pavonis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Pavo
Right ascension 20h 25m 38.85705s[1]
Declination −56° 44′ 06.3230″[1]
Apparent magnitude (V) 1.94[2]
Characteristics
Spectral type B3 V[3]
U−B color index −0.71[2]
B−V color index −0.20[2]
Astrometry
Radial velocity (Rv)+2.0[4] km/s
Proper motion (μ) RA: 6.90[1] mas/yr
Dec.: −86.02[1] mas/yr
Parallax (π)18.24 ± 0.52 mas[1]
Distance179 ± 5 ly
(55 ± 2 pc)
Absolute magnitude (MV)−1.762[5]
Details
Mass5.91[6] M☉
Radius4.83[7] R☉
Luminosity2,200[7] L☉
Surface gravity (log g)3.94[6] cgs
Temperature17,711[6] K
Rotational velocity (v sin i)16[6] km/s
Age48[6] Myr
Other designations
Peacock, CD-57° 9674, FK5 764, HD 193924, HIP 100751, HR 7790, SAO 246574.[8]
Database references
SIMBADdata

Alpha Pavonis (α Pavonis, abbreviated Alpha Pav, α Pav), formally named Peacock /ˈpiːkɒk/, is a binary star in the southern constellation of Pavo, near the border with the constellation Telescopium.

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