Glossary term: 球状星团
Description: 球状星团是一种大质量、球形且稠密的恒星群,它们通过引力相互作用保持稳定,寿命长达数十亿年。在银河系中,球状星团几乎全部由非常古老的恒星组成,通常年龄在110亿至130亿年之间。球状星团是银河系中最古老的天体之一。大多数球状星团中的恒星几乎在同一时期形成,尽管有些球状星团显示出多代恒星的证据。银河系大约有160个球状星团,大多数位于银河的光晕中,而巨大的椭圆星系可以拥有成千上万个球状星团。
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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
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银河系中心附近球状星团中的恒星
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License: PD Public Domain icons
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