Betelgeuse, Alpha Orionis

Right Ascension	05 : 55 : 10.3 (h:m)
Declination	+07 : 24 : 25 (deg:m)
Distance	650 (ly)
Visual brightness	0.40 .. 1.3 (mag)
Period	about 2070 (days)
Spectra type	M1-2 Ia-Iab

• MAA Betelgeuse star page
• More on Betelgeuse (STScI PRC 96-04, stellar disk photographed by HST)
• VLA finds "Boiling" in Betelgeuse's atmosphere (NRAO press release)
• Betelgeuse info from Jim Kaler's Stars (Star of the Week) pages
• Betelgeuse info from Chris Dolan's constellations pages
• Invalid Link! The Story of Betelgeuse from Stars and Atoms by A. S. Eddington, 1928 - Book link
• Betelgeuse was Variable Star of the month December 2000 at AAVSO
• AAVSO data for Alpha Orionis
• Publications on Alpha Orionis (NASA ADS)
• SIMBAD data for Alpha Orionis

Hartmut Frommert
Christine Kronberg
[contact]