At its center, nearly every large galaxy contains a supermassive black hole surrounded by a big bulge of stars.
在每个星系的中心几乎都存在一个超大质量的黑洞，而这个黑洞的周围又包围着一个大核球。
Bulge stars orbit the galactic center at a different speed than foreground stars.
银河中心恒星轨道胀在不同速度比前景恒星。
Bulge stars orbit the galactic center at a different speed than foreground stars.
银河中心恒星轨道胀在不同速度比前景恒星。
应用推荐