A

David

Darling

metal-poor star

A metal-poor star is a star composed of material that has been little recycled through previous generations of stars. Its proportion of elements heavier than hydrogen or helium is therefore very much less than that of the Sun. Metal-poor stars are Population II objects, usually found in the galactic halo or in globular clusters. Whether they ever have associated planetary systems is an open question. Compare with metal-rich star.