这些古老的恒星居于向银河系圆盘上下延伸的恒星晕之中，它们形成的时间很早，早在有机会产生重元素的前几代恒星形成之前。

Residing in the stellar halo extending above and below the galaxy's disk, these stars are so old that they formed before earlier generations of stars had much of a chance to produce heavy elements.

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这些古老的恒星居于向银河系圆盘上下延伸的恒星晕之中，它们形成的时间很早，早在有机会产生重元素的前几代恒星形成之前。

Residing in the stellar halo extending above and below the galaxy's disk, these stars are so old that they formed before earlier generations of stars had much of a chance to produce heavy elements.

youdao