LONGITUDE
North Pole
South Pole
Each longitude 69 miles wide
Eastern
Hemisphere
Western
Hemisphere
Each time zone equals 15° longitude
0° longitude
(Greenwich,England)
180° longitude
(international date line)
49
GPScape System
Introduction
Longitudes, also called meridians, are vertical circles extended from the
North Pole to the South Pole. The zero degree longitude, which passes
through Greenwich, England, divides the Earth into the Eastern and
Western hemispheres. The 180 degree longitude, half way around the
planet, is the international date line.
05/06/08 10:52:12 31HN2650_058
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