Thursday, August 16, 2012
This is the angular distance, in degrees, minutes, and seconds of a point north or south of the Equator.
This is the angular distance, in degrees, minutes, and seconds, of a point east or west of the Prime (Greenwich) Meridian.
By dividing the circumference of the earth (apprx. 25,000 miles) by 360 degrees, the distance on the earth's surface for each one degree of latitude or longitude is just over 69 miles (111 km).