libnova is a general purpose, double precision, Celestial Mechanics,
Astrometry and Astrodynamics library.
Currently computes:
* Aberration
* Nutation
* Apparent Position
* Dynamical Time
* Julian Day
* Precession
* Proper Motion
* Sidereal Time
* Solar Coordinates (using VSOP87)
* Coordinate Transformations
* Planetary Positions Mercury - Pluto (Mercury - Neptune using VSOP87)
* Planetary Magnitude, illuminated disk and phase angle.
* Lunar Position (using ELP82), phase angle.
* Elliptic Motion of bodies (Asteroid + Comet positional and orbit data)
* Asteroid + Comet magnitudes
* Parabolic Motion of bodies (Comet positional data)
* Orbit velocities and lengths
* Atmospheric refraction
* Rise, Set and Transit times.
* Semidiameters of the Sun, Moon, Planets and asteroids.
* Angular separation of bodies
* Hyperbolic motion of bodies
WWW: http://libnova.sourceforge.net/
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