Gradnetz 
grid system 
Längengrade 
lines of longitude 
westlicher Meridian 
Western meridian 
Nullmeridian 
prime meridian 
östlicher Meridian 
Eastern meridian 
Breitengrade 
lines of latitude 
nördlicher Polarkreis 
Arctic Circle 
Äquator 
Equator 
Wendekreis des Steinbocks 
Tropic of Capricorn 
Breitenkreis 
parallel 
Wendekreis des Krebses 
Tropic of Cancer 
südlicher Polarkreis 
Antarctic Circle 