Gamma2 Leonis


Distance (Light Years) 126 ± 4
Apparent Magnitude 2.01(combined)
Color (B-V)

Description of the Star

Algeiba B is a G7III giant separated from Algeiba A by 4.581 arc seconds and about one magnitude dimmer than Algeiba A. The separation of the two stars is 176 AU or more, that is more than 4 times the radius of the solar system out to Pluto. The period of the orbit of the orbit of the two stars about their common center of mass is a few hundred years.

The spectral type implies an effective temperature of about 4800 K, a diameter about 12 times that of the sun, and a mass about 3.5 times that of the sun. This implies a luminosity about 6 times that of the sun.

Other Designations For This Star


41 Leonis

Hipparcos Identifier (HIP Number)

Harvard Revised (HR Number)


Henry Draper Catalog (HD Number)


Bonner Durchmusterung (BD Number)

BD+20 2467
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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