How many miles does the Earth travel in its orbit around the Sun?

1 Answer
A. S. Adikesavan
Feb 13, 2016

2 X Pi X AU = 9.40 E+06 km = 5.84 E+08 miles, nearly

Explanation:

This is an approximation under the assumption that the orbit is a circle of radius 1 AU. Yet, there is no error in the 3-sd approximation. We could generate one more correct sd, using that the orbit is an ellipse of small eccentricity e = 0.01671.Unless the transcendental e is known exactly for more sd, we cannot improve beyond 4 sd..

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