| 释义 |
双星shuāngxīng
1.两个距离很近或彼此之间有引力关系的恒星叫做双星。用肉眼或望远镜能分清是两个星的叫做视双星;用分光的方法才能分清的叫做分光双星。双星中较亮的一颗叫主星,另一颗围绕主星旋转,叫伴星。{double star; two stars that are very close or that gravitate towards each other. Those that can be observed with the naked eye or a telescope are known as visual double stars, while those that can only be distinguished by their spectrum are known as spectroscopic double stars. The brighter of the double stars is called the primary star, while the other, rotating around the primary star, is the companion star.}
2.指牛郎和织女两颗星。{Altair and Vega} |