Rigel, Beta Ori

Rigel is the lower right star in the rectangle of bright stars in Orion.
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Orion
Pronunciation /ˈraɪdʒəl, -gəl/
Right ascension 05
Declination −08° 12′ 05.8981″
Apparent magnitude (V) 0.12
Characteristics
Spectral type B8 Iae:
U−B color index −0.66
B−V color index −0.03
Variable type Slightly irregular
Astrometry
Radial velocity (Rv) 20.7 km/s
Proper motion (μ) RA: +1.31 mas/yr
Parallax (π) 3.78 ± 0.34mas
Distance 860 ± 80 ly
(260 ± 20 pc)
Absolute magnitude (MV) –7.84 ± 0.2
Details
Mass 24 ± 3M
Radius 71R
Luminosity (bolometric) 96,456L
Surface gravity (log g) 1.75 ± 0.10
Temperature 12,130K
Metallicity [Fe/H] –0.06 ± 0.10dex
Rotational velocity (v sin i) 40 km/s
Age (8 ± 1) × 10 years
Other designations
Rigel, Algebar, Elgebar, β Ori, 19 Ori, HD 34085, HR 1713, HIP 24436, SAO 131907, TD1 4253.
Database references
SIMBAD data

Get more info about Rigel in Wikipedia

This article uses material from the Wikipedia article
Rigel, which is released under the Creative Commons Attribution-Share-Alike License 3.0