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#Mon Aug 09 11:50:40 CEST 2010
Text__i-FJYKObEd-WfYQ0GneCwQ_title=
Text__i-FJYKObEd-WfYQ0GneCwQ_text=With his mural quadrant Tycho Brahe increased the accuracy for measuring  the position of the stars by 2 arc minutes.