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.
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These details are provided for information only. No information here is legal advice and should not be used as such.
30 Day SummarySep 7 2024 — Oct 7 2024
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12 Month SummaryOct 7 2023 — Oct 7 2024
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