Modules

Implement the VSOP87D position model.
VSOP87D model of the position of Jupiter
VSOP87D model of the position of Mars
VSOP87D model of the position of Mercury
VSOP87D model of the position of Neptune
VSOP87D model of the position of Saturn
VSOP87D model of the position of the Sun
VSOP87D model of the position of Uranus
VSOP87D model of the position of Venus
VSOP87D inferior planets
VSOP87D superior planets