Beta Pegasi


Distance (Light Years) 199.2 ± 8.8
Apparent Magnitude 2.44
Color (B-V)1.67

Names For This Star

Scheat derives from the Arabic - either from Al Sa'id, meaning "The Upper Arm" or from Sa'd, meaning lucky or fortunate. Related names are Sheat or Seat Alpheras ("Alpheras here is derived from the Arabic Al Faras, "The Horse."

Another name for the star is Menkib from Mankib al Faras, "The Horse's Shoulder."

Description of the Star

Scheat is a cool, red M2.5II-III bright giant or normal giant having a luminosity about 340 times that of the sun.

Burnham lists the diameter of the star as 0.021 arc seconds, which would correspond to 1.3 AU or 280 times the diameter of the sun. Burnham assesses the effective temperature of the star as 3100 K and the mass as five times that of the sun.

According to Burnham the star is an irregular variable whose Apparent Magnitude varies between 2.1 and 3.0 with an irregular period. BF Name: 53Bet Peg Mult Count: 3 [: starNames SCHEAT; Sheat; Seat Alpheras; Menkib. Spectra Ultraviolet FeII emission. Variability Lb 2.31 - 2.74V. :]

Other Designations For This Star


53 Pegasi

Hipparcos Identifier (HIP Number)


Harvard Revised (HR Number)


Henry Draper Catalog (HD Number)


Bonner Durchmusterung (BD Number)

BD+27 4480
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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