A metal-rich star is a star with a relatively high metal-to-hydrogen ratio, as indicated by strong lines of magnesium, calcium, iron, and other heavy elements. They are typically members of Population I, though the Sun itself is considered a moderately metal-rich star. An unresolved problem is the connection between metal richness of stars and their likelihood of having planets. Compare with metal-poor star.
Related category• TYPES OF STARS
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