Evolutionary track of star with initial mass of 0.8 M sun, Y = 0.251, Z = 0.004.
<p>Track contains main sequence, subgiant branch and red giant branch.
First dredge-up is shown as bold dot; red giant branch bump is shown in an inset.
Axes are shown in logarithmic units.
</p>
The graph is reproduction of the similar one from "Evolution of stars and stellar populations" book.
<a href="//commons.wikimedia.org/wiki/User:Vallastro" title="User:Vallastro">Vallastro</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>