Passenger from the "Equator" Passenger from the "Equator" Passenger from the "Equator" () is a 1968 Soviet children's adventure film directed by Aleksandr Kurochkin. Young swimmer Ilmar sails on the ship "Equator" to the pioneer camp, located somewhere on the Black Sea shore. Accidentally, he witnesses a strange event: one of the passengers, a foreigner (he is a magician and a "businessman"), Mr. Pipp secretly throws a suspicious object into the sea (radio beacon). Pipp discovers a boy nearby and fearing revelation, pushes him overboard, and no one notices what has occurred on the boat. Some time later, the leader of the pioneer detachment
Longitude then the longitude at a point would be equal to the angle between a vertical north–south plane through that point and the plane of the Greenwich meridian. Everywhere on Earth the vertical north–south plane would contain the Earth's axis. But the Earth is not radially homogeneous and has rugged terrain, which affect gravity and so can shift the vertical plane away from the Earth's axis. The vertical north–south plane still intersects the plane of the Greenwich meridian at some angle; that angle is the astronomical longitude, calculated from star observations. The longitude shown on maps and GPS devices is the