a library of C routines for astronomical calculations.
Kepler is a library of C routines for astronomical calculations. It features the following:
- The entire VSOP87 theory for calculating the positions of the eight planets.
- The entire ELP 2000-82B theory for calculating the position of the Moon.
- An analytical theory for calculating Pluto's position for the period 1700AD-2100AD.
- The ability to convert osculating orbital elements to heliocentric coordinates.
- The latest IAU 2006 precession and IAU 2000A nutation models.
- Routines for calculating sidereal time using the current IAU resolutions.
- An implementation of the Ron/Vondrak theory of annual aberration.
- Routines for Julian date calculations.
- Routines for coordinate transformations, rotations and parallax corrections.
10 March 2010
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