Tau Pegasi
From Infogalactic: the planetary knowledge core
| Observation data Epoch 2000 Equinox 2000 |
|
|---|---|
| Constellation | Pegasus |
| Right ascension | 23h 20m 38.24188s |
| Declination | +23° 44′ 25.2098″ |
| Apparent magnitude (V) | +4.59 |
| Distance | 165.9 ly (50.9 pc) |
| Spectral type | G0 |
| Other designations | |
| Database references | |
| SIMBAD | data |
Tau Pegasi (τ Peg, τ Pegasi) is a 4.6 magnitude star in the constellation Pegasus. The star has also the traditional names Salm,[1][2] Kerb[2] (or El Khereb[2]) and Markab, a name shared with α Pegasi, k Puppis and κ Velorum. τ Pegasi belongs to the spectral class A5 Vp, making it an A-type main sequence star.
This is a Delta Scuti variable star with a pulsation period of 0.94 hours. It is rotating rapidly with a projected rotational velocity of 150 km s−1. Tau Pegasi is radiating nearly 30 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 7,762 K.[3]
References
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