Turnoff point

http://astrothesaurus.org/uat/1721

dcterms modified equal to or less than 2020-11-19T16:44:37.661Zequal to or more than 2020-11-19T16:44:37.661Z
broader
http://astrothesaurus.org/uat/725 original
narrower
1721 original
definition The point on the Hertzsprung-Russell diagram of a star cluster at which stars begin to leave the main sequence and move toward the red giant branch. The main-sequence turnoff is a measure of age. In general, the older a star cluster, the fainter the main-sequence turnoff.
type
Resource original
Concept original
contributor AAS_Frey.Katie original