The longitude coordinate gives the location of a place on Earth east or west of the prime meridian. The prime meridian runs from the north pole through Greenwich, England to south pole. Lines of Longitude are the vertical lines shown running north-to-south on maps.
0° longitude is the prime meridian.
+180° longitude is the maximum value.
-180° longitude is the minimum value.
Notes:
- You should only enter positive or negative values.
- You can enter an integer or real value in the deg field.
