Date: 2010-09-19 05:11:30

Heinrich Christian Schumacher

Peter Andreas Hansen

Johann Georg Repsold

Schumacher

Friedrich Georg Wilhelm von Struve

Jacob Struve

Mannheim Observatory

Carl Friedrich Gauss

Tartu Observatory

Royal Society

Struve family

Fellows of the Royal Society

Heinrich Christian Schumacher - astronomer and geodesist Tõnu Viik

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