Alnilam

(al-NIGH-lam)

Epsilon Orionis

Alnilam

Distance (Light Years) 1340 ± 500
Apparent Magnitude 1.69
Color (B-V)-0.19

Names For This Star

Other names for this star are Alnihan and Alnitam. The name of the star derives from the Arabic term Al Nitham or Al Nathm meaning "The String of Pearls".

Description of the Star

Alnilam is a blue B0Ia supergiant star. According to the The Bright Star Catalog the star is about 30 times the diameter of the sun. The spectral type implies an effective temperature of 30,000 K and a luminosity of 250,000 times that of the sun.

Other Designations For This Star


Flamsteed

46 Orionis

Hipparcos Identifier (HIP Number)

26311

Harvard Revised (HR Number)

1903

Henry Draper Catalog (HD Number)

37128

Bonner Durchmusterung (BD Number)

BD-01 969
Smithsonian Astrophysical
Observatory compendium (SAO Number)
132346

Fundamental Katalog (FK5 Number)

210
 

 


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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