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Main Sequence
The diagonal belt of stars on the Hertzsprung-Russell diagram stretching from the high temperature and luminosity region of the diagram down to the low temperature end.
A star's position in the belt depends on its mass, and once on the Main Sequence a star remains there for most of its existence.
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 15)
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“main sequence”
Zero Age Main Sequence, ZAMS
The point on the Hertzsprung-Russell diagram occupied by a star that has a core temperature high enough for nuclear reactions.
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 28)