Epsilon Orionis (HD 37128)
Spectral Type: B0Iab (SIMBAD)
Temperature: 27,500 +/- 1000 K (Searle 2008)
27,000 K (Crowther 2006)
28,500 K (Pauldrach 1986)
Radius: 32.4 +/- 0.75 R_sun (Searle 2008)
24 R_sun (Crowther 2006)
37 R_sun (Pauldrach 1986)
Terminal Wind Velocity: 1600 km/s (Searle 2008, but ultimately Haser 1995)
1910 km/s (Crowther 2006)
2010 km/s (Pauldrach 1986)
Mass-Loss Rate: (1.9 +/- 0.9/0.0)e-6 M_sun/yr (Searle 2008)
(2 - 2.5)e-6 M_sun/yr (Crowther 2006)
3.1e-6 M_sun/yr (Pauldrach 1986)
Beta: 1.1 (Searle 2008)
1.5 (Crowther 2006)
0.72 (Pauldrach 1986) 1.0 (Haser 1995)

Home Log Tasks
HD 93129 HD 93250 9 Sgr ξ Per ζ Oph ζ Ori ε Ori ι Ori
ζ Pup HD 150136 Cyg OB2-8A 15 Mon τ CMa δ Ori