Pi3 Orionis

"Tabit" redirects here. For the town in Sudan, see Tabit (town). For other stars with this Bayer designation, see π Orionis.
π3 Orionis
Location of π3 Orionis (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Orion
Right ascension 04h 49m 50.41091s[1]
Declination +06° 57′ 40.5883″[1]
Apparent magnitude (V) 3.16[2]
Characteristics
Spectral type F6 V[2]
U−B color index +0.00[2]
B−V color index +0.46[2]
Variable type Suspected[3]
Astrometry
Radial velocity (Rv)24.1[4] km/s
Proper motion (μ) RA: 464.06[1] mas/yr
Dec.: 11.21[1] mas/yr
Parallax (π)123.94 ± 0.17 mas[1]
Distance26.32 ± 0.04 ly
(8.07 ± 0.01 pc)
Absolute magnitude (MV)3.65[5]
Details[6]
Mass1.288±0.019 M☉
Radius1.317±0.004 R☉
Luminosity2.816±0.06 L☉
Surface gravity (log g)4.31±0.01 cgs
Temperature6,518±35 K
Metallicity [Fe/H]0.03±0.03 dex
Rotational velocity (v sin i)17[7] km/s
Age1.04[8] Gyr
Other designations
Tabit, π3 Ori, 1 Ori, BD+06°762, FK5 1134, GCTP 1077.00, Gliese 178, HD 30652, HIP 22449, HR 1543, LTT 11517, SAO 112106[9]
Database references
SIMBADdata

Pi3 Orionis (π3 Orionis, abbreviated Pi3 Ori, π3 Ori), also named Tabit /ˈteɪbɪt/,[10][11] is a star in the equatorial constellation of Orion. At an apparent visual magnitude of 3.16,[2] it is readily visible to the naked eye and is the brightest star in the lion's hide (or shield) that Orion is holding. As measured using the parallax technique, it is 26.32 light-years (8.07 parsecs) distant from the Sun.[1]

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