Beta Crucis


Distance (Light Years) 353 ± 23
Apparent Magnitude 1.25
Color (B-V)-0.23

Names For This Star

I can find no information on the origin of the name Mimosa for this star. This star is also known as Becrux. Becrux is probably a coinage of the American astronomer, Elijah H. Burritt, who published several editions of an astronomical atlas between 1833 and 1856. There word is derived from the name of the constellation, Crux, and the Bayer designation of the star as beta. The Greek beta, of course, corresponds to the Roman "B".

Description of the Star

Mimosa is a hot, blue B0.5III giant having a luminosity about 3200 times that of the sun and a diameter about 8 times that of the sun.

Other Designations For This Star


Hipparcos Identifier (HIP Number)


Harvard Revised (HR Number)


Henry Draper Catalog (HD Number)


Bonner Durchmusterung (BD Number)

CP-59 4451
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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