Glossary term: Stellar Population
Description: Stellar population is a term for a group of stars. More generally a stellar population is any population of stars, for instance the stellar population of a galaxy. More specifically this term is often used to refer to different populations of stars that make up a star cluster or galaxy. These populations may have different ages or metallicity, and may have different origins. Stars in the Milky Way are often divided into Population I stars (the younger stars in the Galactic disk with higher metallicities) and Population II stars (the older stars in the Galactic halo with lower metallicities). Population III stars are a theorized population of stars with very low metallicity. Population III stars are thought to represent the first generation of stars to have formed after the Big Bang.Related Terms:
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Term and definition status: This term and its definition is still awaiting approval
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