In the title of the window , the speed and direction of the apparent motion for the object is displayed 在该窗口的标题栏上显示了该移动天体视运动的速度及方位角。
In this chapter , we will discuss the apparent motion of the heavenly bodies . we will understand why the sun , the moon and the planets move , but stars do not 在这一章内,我们会讨论天体的视运动,明白为甚么太阳月球及行星会在天球上移动,但恒星则好像永恒不变。
an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object; "the cinema relies on apparent motion"; "the succession of flashing lights gave an illusion of movement" 同义词:motion, apparent movement, movement