f.from.t | R Documentation |
true angle from days
f.from.t(ecc, t)
ecc |
eccentricity |
t |
days from perihelion |
true angle from perihelion (via the mean angle M)
Thomas Laepple
Grossman, N.: Orbits under the Inverse Square Law, in The Sheer Joy of Celestial Mechanics, edited by N. Grossman, pp. 41–61, Birkhäuser Boston, Boston, MA., 1996.
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