How do astronomers determine the age of stars?
How do astronomers determine the age of stars?

How do astronomers determine the age of stars?

Astronomers use various methods to estimate the age of stars, depending on their stage of evolution. For young stars, the analysis of their location within star-forming regions and their association with other stellar populations provides clues to their age. Stellar clusters containing stars of similar ages are particularly useful. Older stars are dated using techniques like isochronal dating, which compares the observed characteristics of a star to theoretical models of stellar evolution. Additionally, the presence of certain elements in a star’s atmosphere can offer insights into its age. Overall, determining stellar ages involves a combination of observational data and theoretical models.

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