Terms containing angular distance

Subject	English	Russian
astr.	angular distance of object from the optical axis	угловое расстояние объекта от оптической оси (W)
math.	measure the required angle at the vertex A, we must find the angular distance between Venus and the sun	при вершине
math.	to measure the required angle at the vertex A, we must find the angular distance between Venus and the sun	при вершине