Population II stars

subdwarf star in the constellation Pictor

Star in the constellation Lyra

red supergiant star in the constellation Libra

metal-poor subgiant star

star in the constellation Eridanus

extremely metal poor star in the constellation Phoenix

binary star in the constellation Cassiopeia

star in the constellation Ursa Major

star in the constrellation Hydrus

star

star

variable star in the constellation Virgo

very low metallicity star in the constellation Hydra

star in the constellation Leo

type of variable stars

binary system in the constellation Aquila

star in the constellation Lepus

variable star in the constellation Eridanus

star in the constellation Tucana

star in the constellation Cetus

spectroscopic binary system the constellation in Libra

variable star in the constellation Phoenix

BD+17°3248 is an old Population II star located at a distance of roughly in the Galactic Halo. It belongs to the class of ultra-metal-poor stars, especially the very rare subclass of neutron-capture (r-process) enhanced stars.

star in the constellation Aquarius

one of the oldest stars in the universe

star

star in the constellation Indus

star in the constellation Boötes

star in the constellation Camelopardalis

star in the constellation Cetus