Perigean spring tide Perigean spring tide A proxigean spring tide (also known as a perigean spring tide) is a tide that occurs three or four times per year when the Moon's perigee (its closest point to Earth during its 29.5-day elliptical orbit) coincides with a spring tide (when the Earth, Sun and Moon are nearly aligned every two weeks). This tide usually adds only a couple of inches to normal spring tides. The Moon's orbit around Earth is elliptical, which causes the Moon to be closer to Earth and farther away at different times. The Moon and the Sun are aligned every two
From the Earth to the Moon (film) laws. When it is discovered that Virginia has stowed away, Nicholl cooperates with Barbicane in a desperate attempt to save her. Sharpe is knocked out, and he and Virginia are placed in the safest compartment of the ship. Barbicane and Nicholl then fire rockets that send the young couple on their way back to Earth, while the two scientists land on the Moon in another section, with no way off. They are able to signal to the young couple that they have reached the Moon safely. Location shooting for "From the Earth to the Moon" took place in Mexico. Various