Help with astronomy question

Science
Tutor: None Selected Time limit: 1 Day

Stars on the _______ are in the normal part of their lives, during which they produce energy by ________ in their cores.

Nov 30th, 2014

During the "normal part" of a star's life, it is on the main sequence, and releases energy through hydrogen fusion.  I cannot explain in too much detail; but from what I remember, the main sequence refers to a range in which live stars are plotted on a scale that measures their brightness and emitted spectra.

Nov 30th, 2014

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Nov 30th, 2014
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Nov 30th, 2014
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