Example image of eyePlorer eyePlorer map for 'Longitude': Geographic coordinate system Greek alphabet Lambda Meridian (geography) Prime Meridian Royal Observatory, Greenwich Latitude Exploration Sailor Astrolabe Quadrant Amerigo Vespucci New World Right ascension Equator Copenhagen El Hierro Great Britain Paris Philadelphia Pisa Saint Petersburg Washington, D.C. International Meridian Conference Angle Minute of arc Sexagesimal Western Hemisphere Cartesian coordinate system Northern Hemisphere Coordinated Universal Time Time zone Marine chronometer Equation of time Universal Time Lithosphere Plate tectonics African Plate South American Plate World Geodetic System European Terrestrial Reference System 1989 North American Datum Oblate spheroid Sphere Angular eccentricity Eccentricity (mathematics) Curvature Degree (angle) Mile Ellipse
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