VSOPTOP2013 (nuget): Computes the analytic solutions published by G. Francou and J.-L. Simon of the Paris Observatory. For a given date and time from -4000 to +8000, returns the position and velocity of any planet 1-9 using VSOP or planet 5-9 using TOP.
Keywords: planet|planets|orbit|orbits|astronomy|orbital|elements|position|elliptic|computation|compute|VSOP|VSOP2013|TOP|TOP2013|solar|system|equatorial|ecliptic|ICRF|J2000|J2000.0