Three extremely metal-poor RR Lyrae stars were analyzed using high-resolution spectra

14. 1. 2025

Three extremely metal-poor RR Lyrae stars were analyzed using high-resolution spectra

Star system: HD 331986 | Distance from the Sun: 3551 light years

Their movement suggests mixed origins - in galactic disk and halo.

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The elderly among the oldest: new evidence for extremely metal-poor RR Lyrae stars external link

Stars mentioned

HD 331986

White-Blue star

radius: 1.8 R☉

distance: 3551 ly

stars in the system: 1

exoplanets: 0

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