English

Alternative forms

• main-sequence

Proper noun

main sequence

1. (astronomy): A major grouping of stars that creates a narrow band from the upper left to the lower right when plotted by luminosity and surface temperature on a Hertzsprung-Russell diagram.
2. The area on the Hertzsprung-Russell diagram in which the main sequence is located.
3. Used other than as an idiom: see main,‎ sequence.

Translations