⭐ Star Cluster Lab: Salpeter Mass Function, Main-Sequence Turn-Off and Dating a Cluster on the HR Diagram

Born together, dying apart: a cluster of hundreds of stars drawn from the Salpeter mass function ages from 1 million to 15 billion years. Watch the main sequence peel off at the turn-off, giants and white dwarfs appear, supernovae go off, and read the cluster's age from its Hertzsprung-Russell diagram.