Main sequence

Definition

The long, stable stage during which a star fuses hydrogen into helium in its core.

Used by Edexcel

Specification 7.17P · Paper 1

When this outward effect balances the inward pull of gravity, the star stops undergoing overall contraction and settles onto the main sequence.
Revise: Star Life Cycle Balance

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GCSE Physics · key term

The long, stable stage during which a star fuses hydrogen into helium in its core.

Used by Edexcel

Specification 7.17P · Paper 1

When this outward effect balances the inward pull of gravity, the star stops undergoing overall contraction and settles onto the main sequence.
Revise: Star Life Cycle Balance

Create a free account to read GCSE Physics revision notes for your exam board and track your progress.