INTERNATIONAL YEAR of ASTRONOMY Eratosthenes

Lyon France

Monday 22 June 2009 by perbosc

Lyon France
INRP CM1 enseignants
Longitude 04°50’ E
Latitude 45°44’ N
Angle + 22°30’ = +22,50°

- gnomon 1m
- ombre 41cm
- angle 22,5°=22°30’


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