Positive or Negative Values?
• Longitude describes the location of a place on Earth east or west of a north-south line called the Prime Meridian. Longitude is given as an angular measurement ranging from 0° at the Prime Meridian to +180° (or 180° E) eastward and −180° (or 180° W) westward. So, if you are in the western hemisphere, your Longitude (which is the first number in the coordinates you are entering), is negative. • Latitude describes the location of a place on Earth north or south of the equator. It is given in an angular measurement in degrees ranging from 0° at the Equator to +90° (90° N) at the North Pole and 0 to -90° (90° S) at the South Pole. So, if you are in the northern hemisphere, your Latitude (which is the second number in the coordinates you are entering), is positive.
