Module vsop87::vsop87d

VSOP87D algorithm: Heliocentric ecliptic spherical coordinates for the equinox of the day.

This module contains the functions to calculate heliocentric ecliptic spherical coordinates for the equinox of the day for the planets in the solar system.

Example

Given a date in JD, we can get the position of the planet Jupiter in the solar system using spherical coordinates. In this case, we calculate where Jupiter was in December 19th, 1399.

use vsop87::vsop87d;

let coordinates = vsop87d::jupiter(2232395.0);

assert!(coordinates.longitude() > 3.0889515349 && coordinates.longitude() < 3.0889515351);
assert!(coordinates.latitude() > 0.0231157946 && coordinates.latitude() < 0.0231157948);
assert!(coordinates.distance() > 5.44915664 && coordinates.distance() < 5.44915740);

Functions

earth	Calculates VSOP87D solution for Earth.
jupiter	Calculates VSOP87D solution for Jupiter.
mars	Calculates VSOP87D solution for Mars.
mercury	Calculates VSOP87D solution for Mercury.
neptune	Calculates VSOP87D solution for Neptune.
saturn	Calculates VSOP87D solution for Saturn.
uranus	Calculates VSOP87D solution for Uranus.
venus	Calculates VSOP87D solution for Venus.