WAltona Observatory
WArchenhold Observatory
WBergisch Gladbach Observatory
WBerlin Observatory
WDüsseldorf-Bilk Observatory
WEinstein Tower
WGEO600
WGeodetic Observatory Wettzell
WGlashütte Observatory
WGotha ObservatoryWGöttingen Observatory
WHamburg Observatory
WHoher List Observatory
WJena Observatory
WKarl Schwarzschild Observatory
WHeidelberg-Königstuhl State Observatory
WMannheim Observatory
WPeterberg Observatory
WPublic Observatory Regensburg
WSankt Andreasberg Observatory
WSonneberg Observatory
WStarkenburg Observatory
WStuttgart Observatory
WZweibrücken Observatory