Module vsop87::vsop87d

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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.