Astrophysics (index)about

O-Type Star

(O)
(type of star with about 50 times the mass of the Sun)

An O-Type Star (O) is of the O-Class, a Spectral Class for stars of around 50 Solar Masses and 10 solar radii. They burn up their Hydrogen in a few million years. They have weak hydrogen Absorption Lines. Characteristics:

blueconventional color
33000-48000KSurface Temperature
9.5-16Radius
23-90Mass
-4.5 to -3.6Absolute Magnitude(visual)
55,000-1,000,000Luminosity(bolometric)
2-9 Million YearsMain-Sequence lifetime
.00001%Abundance

(star type,spectral type)
http://en.wikipedia.org/wiki/Stellar_classification
WaveLFreqPhoton
Energy
  
72.5nm4.2PHz17eVbeginO-Type Star
97nm3.1PHz13eVendO-Type Star

Referenced by:
Be Star
Globular Cluster (GC)
Gould's Belt
Markarian Galaxy (Mkn)
Solar Mass (MSun)
O5 Spectral Class (O5)
OB Association
OB Star
Orion
Star Formation Rate (SFR)
Solar Wind
Spectral Class
Stellar Association

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