短语词组短語elliptical radio galaxy 橢圓射電星系supergiant elliptical galaxy 超巨橢圓星系giant elliptical galaxy [天]巨橢圓星系Sagittarius Dwarf Elliptical Galaxy 人馬座矮橢球星系dwarf elliptical galaxy 矮橢圓星系 返回 elliptical galaxy