Sentences with phrase «per lunar day»

For an observer stationed on the surface and revolving with it, the bulges would appear as a giant wave, which follows the apparent motion of the moon to the west and has two crests per lunar day.

It is clear then that Laplace's theory predicts two pressure maxima per lunar day corresponding to the two ocean bulges [see illustration].

Not exact matches

Our planet as a whole conserves its angular momentum except for the known effects of external torque associated with the lunar - solar tide, which induces a gradual decelerating of the earth rotation velocity at a rate corresponding to the increase in the astronomic length of day (LOD) by about 1.4 millisecond per century (Munk and McDonald 1960).