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.
Official Website of Oxford, NC. Oxford is a city in Granville County, North Carolina, United States with a population 8,461 as of 2010 census It is the county seat of Granville County.