![]() ![]() Location of α Pegasi (circled) |
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Observation data Epoch J2000 Equinox J2000 |
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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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