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The great-circle distance, orthodromic distance, or spherical distance is the distance between two points on a sphere, measured along the great-circle arc between them. This arc is the shortest path between the two points on the surface of the sphere. (By comparison, the shortest path passing through the sphere's interior is the chord between the points.)
Standards, Relation between central angle and chord length & Radius for spherical Earth
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points sphere distance length displaystyle two spherical delta sigma angle earth chord radius sin formula arc central great-circle great end
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Great-circle distance | part of | the more general problem of great-circle navigation | 0.85 | text |
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