Glossary term: 星族
Description: 星族是一個描述恆星集合的術語。一般來說，星族是指任何恆星群體，例如星系的星族。
更具體地說，這個術語通常用來指代組成星團或星系的不同恆星群。這些恆星群可能有不同的年齡或金屬丰度，也可能有不同的起源。
銀河系中的恆星通常被分為星族I星（銀盤中較年輕、金屬性較高的恆星）和星族II星（銀暈中較年老、金屬性較低的恆星）。星族III星是理論上金屬丰度極低的恆星群。星族III星被認為是大爆炸後形成的第一代恆星。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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