Theta Centauri


Distance (Light Years) 60.9 ± 0.9
Apparent Magnitude 2.06
Color (B-V)1.01

Names For This Star

The name Menkent for Theta Centauri is not found in Allen, but "Gibson" and "Dolan" offer the translation "The Shoulder of the Centaur" for the name. If Gibson and Dolan are correct then "Menkent" would probably be a mixture of Arabic (Men-, see Menkalinan) and Greek (Kentauros).

Description of the Star

Menkent is a cool, orange K0-IIIb giant having a luminosity about 45 times that of the sun. The spectral type suggests a temperature of around 4500 K, a mass at least 4 times that of the sun, and a diameter at least 16 times larger than the sun.

Other Designations For This Star


5 Centauri

Hipparcos Identifier (HIP Number)


Harvard Revised (HR Number)


Henry Draper Catalog (HD Number)


Bonner Durchmusterung (BD Number)

CD-35 9260
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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