Despite the Moon's rotational and orbital periods being exactly locked, we may actually observe about 59% of the moon's total surface with repeated observations from earth due to the phenomena of librations and parallax.
Despite the Moon's rotational and orbital periods being exactly locked, we may actually observe about 59% of the moon's total surface with repeated observations from earth due to the phenomena of librations and parallax.
尽管完全地被锁的月亮的回转而轨道的期数，我们由于振动和视差的现象可能实际上用来自地球的重复的观察观察大约59%月亮的完全表面。