created sense approved 恒星系/恆星系 · héngxīngxì · galaxy
恒星系 / 恆星系
héngxīngxì
galaxy
a massive, gravitationally bound system consisting of stars, stellar remnants, interstellar gas, and dust
仙女座星系是距离我们最近的大型恒星系。
created sense approved 恒星系/恆星系 · héngxīngxì · stellar system
恒星系 / 恆星系
héngxīngxì
stellar system
a system of one or more stars and the celestial bodies orbiting them, such as planets
半人马座阿尔法星是一个由三颗恒星组成的恒星系。
noun