Orthodromic navigation

Orthodromic course drawn on the earth globe.

Comparison, of orthodromic course (white) compared with a loxodromic course (red).

The orthodromic navigation (related to orthodromic course; from the Greek ορtóς, right angle, and δρóμος, path) is a way to navigate following an arc of great circle corresponding to the shortest distance between two points on the globe.

Since the Earth is roughly a sphere, the orthodromic distance of the is often used by mariners to find the distance between two coordinates (knowing its longitude and its latitude) on a map, and the course to be taken to go from one to the other.

单词	Great circle navigation
释义	Great circle navigation 英语百科 Orthodromic navigation The orthodromic navigation (related to orthodromic course; from the Greek ορtóς, right angle, and δρóμος, path) is a way to navigate following an arc of great circle corresponding to the shortest distance between two points on the globe. Since the Earth is roughly a sphere, the orthodromic distance of the is often used by mariners to find the distance between two coordinates (knowing its longitude and its latitude) on a map, and the course to be taken to go from one to the other.
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Great circle navigation

Orthodromic navigation