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galactic bulge
释义
galactic bulge
Encyclopedia
理学
不规则星系
释
galactic bulge
星系核球
位于盘星系中央的椭球状恒星密集区,其主要成分是老年星族II天体,构成星系盘的盘族恒星分布于核球的周围,星系核位于核球的中心。
Astronomy
galactic bulge
星系核球
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