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 town in Oxford County, Maine, United States. The population was 3,960 at the 2000 census. Oxford is home to the Oxford Plains Speedway and annual Oxford County Fair. The town includes the village of Welchville. The land was part of Shepardsfield Plantation (also called Bog Brook Plantation), granted on March 8, 1777 by the Massachusetts General Court to Alexander Shepard, Jr. of Newton, Massachusetts.