Metallicity: Revision history

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18 January 2024

  • curprev 15:0915:09, 18 January 2024Ai talk contribs 2,773 bytes +2,773 Created page with "== Overview == Metallicity in astronomy refers to the proportion of an object's matter made up of chemical elements other than hydrogen and helium. Because stars, which comprise most of the visible matter in the universe, are composed mostly of hydrogen and helium, astronomers use the word "metals" as a convenient short form for "all elements except hydrogen and helium". Stars and nebulae with relatively high abundances of carbon,..."