Hertzsprung Russell diagram
type: Concept
narrower: Main sequence

Main sequence stars
type: Concept
related: Main sequence

Zero-age main sequence stars
type: Concept
related: Main sequence

Dwarf stars
type: Concept
related: Main sequence

Main sequence
type: Concept
broader: Hertzsprung Russell diagram
modified: 2020-11-10T19:11:39.238Z
modified: 2020-11-10T19:11:26.949Z
definition: An evolutionary stage in the life of a star when it generates its energy by the conversion of hydrogen to helium via nuclear fusion in its core. Stars spend 90% of their life on the main sequence. On the Hertzsprung-Russell diagram it appears as a track running from top left (high temperature, high luminosity, high mass) to lower right (low temperature, low luminosity, low mass).
contributor: AAS Frey.Katie
created: 2018-09-13T14:54:24Z
related: Zero-age main sequence stars
related: Main sequence stars
related: Dwarf stars
creator: AAS Frey.Katie