Eccentricity_of_orbit¶
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Astronomy.solar.
Eccentricity_of_orbit
(T)¶ Eccentricity of the orbit ellipse.
Eccentricity e is the ratio of half the distance between the foci c to the semi-major axis a: e=c/a. For example, an orbit with e=0 is circular, e=1 is parabolic, and e between 0 and 1 is elliptic.
The eccentricity of Earth’s orbit changes slowly with time.
:param T : list of powers of Julian centuries from 2000.0 :type T : list of float
- Returns
degrees