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Obliquity of the ecliptic .... Schiefe der Ekliptik berechnet mit den Theorien von Le Verrier Newcomb Wittmann Astronomical Almanac und Laskar Die Werte berdecken sich wegen der begrenzten Auflsung des Diagramms teilweise gegenseitig Obliquity of the ecliptic calculated according the theories of Le Verrier Newcomb Wittmann