Noun
The quality or state of being metallic.
(astronomy) The abundance of elements heavier than helium in stars as a result of nucleosynthesis.
Source: en.wiktionary.orgA star's metallicity can influence the time the star takes to burn its fuel, and controls the formation of its magnetic fields, citation which affects the strength of its stellar wind. Source: Internet
At moderate to high metallicity, stars near the upper end of that mass range will have lost most of their hydrogen when core collapse occurs and the result will be a Type II-L supernova. Source: Internet
Extremely luminous stars at near solar metallicity will lose all their hydrogen before they reach core collapse and so will not form a type II supernova. Source: Internet
However, Cepheids appear to suffer from a metallicity effect, where Cepheids of different metallicities have different period–luminosity relations. Source: Internet
Low metallicity red dwarfs, however, are rare. Source: Internet
Stars with a higher metallicity than the Sun are more likely to have planets, especially giant planets, than stars with lower metallicity. citation Some planets orbit one member of a binary star system, Schwarz, Richard. Source: Internet