The turnoff point for a star refers to the point on the Hertzsprung-Russell diagram where it leaves the main sequence after the exhaustion of its main fuel. By plotting the turnoff point of the stars in star clusters, one can estimate the clusters age.
Read more about Turnoff Point: Stars With No Turnoff Point
Famous quotes containing the word point:
“The point of cities is multiplicity of choice.”
—Jane Jacobs (b. 1916)