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Marie Henri Andoyer
Born(1862-10-01)1 October 1862
Died12 June 1929(1929-06-12) (aged 66)
Known forAndoyer approximation, Celestial mechanics
Scientific career
FieldsAstronomy, Mathematics


Marie Henri Andoyer (1 October 186212 June 1929) was a French astronom and mathematician. He published on celestial mechanics of planets, minor planets, the moon and the moons of Jupiter.

He created an approximation formula, the Andoyer approximation for the calculation of the distance of two points on the Earth (or other ellipsoidal bodies), which takes the flattening of the Earth into account (unlike, for example, the Haversine formula)

External links[edit]

Comparison[edit]

The following table compares methods for the calculation of the distance between two points on the earth.

Andoyer haversine Rudoe Vincenty
Amsterdam - New York 0 0 0 0
New York - San Francisco 0 0 0 0