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� |
Main sequence not quite
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constant R
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B stars:�� R ~10
RSun
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M stars:�� R
~0.1 RSun
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Betelgeuse:�
R~ 1,000 RSun
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Larger than 1 AU
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White dwarfs:�
R~ 0.01 RSun
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A few Earth radii
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What
causes the �main
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sequence�?
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Why
�similar� size, with
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precise
R related to T?
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Why
range of T?
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Why
are a few stars (giants, white
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dwarfs)
not on main sequence?
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