Definition of main sequence in English:

main sequence

Line breaks: main se|quence

noun

Astronomy
  • A series of types to which most stars belong, represented on a Hertzsprung-Russell diagram as a continuous band extending from the upper left (hot, bright stars) to the lower right (cool, dim stars): [as modifier]: main sequence stars
    More example sentences
    • The pressure from these nuclear reactions at the star's core balances the pull of gravity, and the star is now called a main sequence star.
    • The Sun is an unusually variable star for its position on the main sequence, something that might explain why Intelligent life is found here, and not everywhere.
    • Several million years is a long time in comparison to a human life span, but it is short in comparison to the life span of main sequence stars.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody