Eratosthenes

Rio de Janeiro, Brazil, Grupo 31 Marechal Rondon

September 2013

Rio de Janeiro Brazil Grupo 31 Marechal Rondon 22°58’S 43°13’W
Date Gnomon Shadow Angle
september 22 106 cm 44 cm->S -22°32’ = -22.543°
september 22 107 cm 43 cm->S -21°53’ = -21.894°
september 22 57 cm 24.5 cm->S -23°15’ = -23.259°
september 22 16.5 cm 7 cm->S -22°59’ = -22.989°

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