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Tau Pegasi
Tau Pegasi (τ Peg, τ Pegasi) is a 4.6 magnitude star in the constellation Pegasus. The star has also the traditional names Salm,〔HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)〕 Kerb〔 (or ''El Khereb''〔) 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.〔 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Tau Pegasi」の詳細全文を読む
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