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 County is a county located in the state of Maine, in the United States. As of the 2010 Census, the county had a population of 57,833. Its county seat is the town of Paris. The county was formed on March 4, 1805 from northerly portions of York and Cumberland counties. It borders the Canadian province of Quebec.