Alpha Pegasi


Distance (Light Years) 139.6 ± 4.5
Apparent Magnitude 2.49
Color (B-V)-0.04

Names For This Star

Another name for this star is Marchab.

The name of this star is an Arabic word designating anything that can be ridden, a saddle, a ship, or a vehicle. Reading the name to mean "Saddle," the connection with the idea of the constellation as a horse, is obvious.

Description of the Star

Markab is a hot, blue B9V main sequence star having about 160 times the luminosity of the sun. The spectral type implies an effective temperature of 11,000 K, a diameter about 2.8 times that of the sun, and a mass of about 4 solar masses.

Other Designations For This Star


54 Pegasi

Hipparcos Identifier (HIP Number)


Harvard Revised (HR Number)


Henry Draper Catalog (HD Number)


Bonner Durchmusterung (BD Number)

BD+14 4926
Smithsonian Astrophysical
Observatory compendium (SAO Number)

Fundamental Katalog (FK5 Number)



Copyright © 1998 - 2010 by Arnold V. Lesikar,
Professor Emeritus
Dept. of Physics, Astronomy, and Engineering Science,
St. Cloud State University,St. Cloud, MN 56301-4498

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