A.天體共軛赤經(jīng)和赤緯 B.天體地方時(shí)角和天體赤經(jīng) C.天體赤經(jīng)和赤緯 D.天體赤經(jīng)和共軛赤經(jīng)
A.100°W B.100°E C.80°W D.80°E
A.260° B.120° C.100° D.240°