Association Européenne pour l'Éducation en Astronomie

Locatia curenta: Prima pagina → Groupspace → Eratosthene → Collège Antonin Perbosc → 2005 Reports → Arras (FRANCE)

National sites

Arras (FRANCE)

2005-arras00

May 9 , 2005

Lafrançaise
solar noon =13:52
gnomon =1 m ; shadow =50 cm ; angle =26.565°

Arras
solar noon =13:46
gnomon =1 m ; shadow =63.5 cm ; angle = 32.416°

2005-arras01

distance between the parallels = Arras-Lafrançaise = 683 km

difference between the angles = 32.416°- 26.565° = 5.856°

circumference of the Earth = 683 x 360 / 5.856 = 41989 km

Autor: Eric Vayssié — Ultima modificare 2007-12-20 16:25