Two identical stars are moving in a circular orbit around one another,with an orbital separation of 5.What is the greate
问题描述：
Two identical stars are moving in a circular orbit around one another,with an orbital separation of 5.What is the greatest distance at which HST,in blue light (450μm ),could resolve the stars?
HST哈勃望远镜 主镜直径2.4米
答
通光口径2.4m的反射式天文望远镜,从紫外到近红外探测宇宙,有光谱仪及高速光度计,恒星所发出的光谱都可以用哈勃来探测得到,所以能探测得到两个恒星相互围绕旋转,望完镜的主镜口径越大,集光能力越强,