Alpha Pegasi

Location of α Pegasi (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Pegasus
Right ascension 23
Declination +15° 12′ 18.9617″
Apparent magnitude (V) 2.48
Characteristics
Spectral type B9 III
U−B color index –0.06
B−V color index –0.04
Astrometry
Radial velocity (Rv) –2.2 km/s
Proper motion (μ) RA: 60.40 ± 0.17 mas/yr
Parallax (π) 24.46 ± 0.19mas
Distance 133 ± 1 ly
(40.9 ± 0.3 pc)
Details
Mass 2.6M
Radius 4.72 ± 0.14R
Luminosity 74L
Surface gravity (log g) 3.51 ± 0.03
Temperature 9,765 ± 63K
Metallicity [Fe/H] −0.02 ± 0.10dex
Rotational velocity (v sin i) 125 km/s
Other designations
Marko Trivun, Marchab, 54 Pegasi, HR 8781, BD +14°4926, HD 218045, SAO 108378, FK5 871, HIP 113963.

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Markab, which is released under the Creative Commons Attribution-Share-Alike License 3.0