The great-circle or orthodromic distance is the shortest distance between two points on the surface of a sphere, measured along the surface of the sphere (as opposed to a straight line through the sphere's interior). line through three-dimensional space between points of interest on a spherical Earth is the chord of the great circle between the points. The central angle between the two points can be determined from the chord length. The great circle distance is proportional to the central angle.
Oxford is a city in Newton County, Georgia, in the United States. As of the 2000 census, the city population was 1,892. It is the location of Oxford College of Emory University. The town was named after Oxford University, the alma mater of the founders of Oxford College. The entire town is also designated as a shrine of the United Methodist Church.
Oxford is a city in northwestern Butler County, Ohio, United States, in the southwestern portion of the state. It lies in Oxford Township, originally called the College Township. The population was 21,943 at the 2000 census. This college town was founded as a home for Miami University. Oxford is served by U.S. Route 27, Ohio State Route 732, and Ohio State Route 73.