Module vsop87::vsop87b

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VSOP87B algorithm: Heliocentric ecliptic spherical coordinates for the equinox J2000.0.

This module calculates heliocentric ecliptic spherical coordinates for the equinox J2000.0 for the planets in the solar system.

Example

Given a date in JD, we can get the position of the planet Earth in the solar system using spherical coordinates. In this case, we calculate where the Earth was in December 30th, 1799.

use vsop87::vsop87b;

let coordinates = vsop87b::earth(2378495.0);

assert!(coordinates.longitude() > 1.7750058557 && coordinates.longitude() < 1.7750058559);
assert!(coordinates.latitude() > 0.0004381094 && coordinates.latitude() < 0.0004381096);
assert!(coordinates.distance() > 0.9832270 && coordinates.distance() < 0.9832278);

Functions

  • earth
    Calculates VSOP87B solution for Earth.
  • jupiter
    Calculates VSOP87B solution for Jupiter.
  • mars
    Calculates VSOP87B solution for Mars.
  • mercury
    Calculates VSOP87B solution for Mercury.
  • neptune
    Calculates VSOP87B solution for Neptune.
  • saturn
    Calculates VSOP87B solution for Saturn.
  • uranus
    Calculates VSOP87B solution for Uranus.
  • venus
    Calculates VSOP87B solution for Venus.