Zet

Its story

Zeta-4 Delphini is a white main-sequence star with a chemical oddity: a 2021 study placed it among the rare Lambda Boötis stars, a sparse group of suns conspicuously poor in surface heavy metals despite their otherwise normal nature. It glows at 220 light-years, inside the small diamond of Delphinus—one of the most compact and quietly elegant constellations of the northern summer sky.