base library

Classes

Ecliptic: Ecliptic coordinates referenced to the ecliptic and equinox of date.
Equatorial: Equatorial coordinates referenced to the equator and equinox of date.
Galactic: Galactic coordinates.
Horizontal: Horizontal coordinates referenced to the observer's horizon.

au → const double: One astronomical unit in km.
cOblJ2000 → const double: Cosine of obliquity at J2000.
cosSmallAngle → const double: Cosine threshold for small angles near the pole.
deg2rad → const double: Degrees to radians conversion factor.
k → const double: Gaussian gravitational constant.
rad2deg → const double: Radians to degrees conversion factor.
sOblJ2000 → const double: Sine of obliquity at J2000.

floorMod(int a, int b) → int: Floor modulus — always returns a non-negative result.
fromSexaSec(int d, int m, double s) → double: Converts sexagesimal (sign, degrees, minutes, seconds) to decimal degrees.
horner(double x, List<double> coefficients) → double: Polynomial evaluation using Horner's method.
lightTime(double delta) → double: Time for light to travel distance delta (in AU). Result in days.
minToRad(double min) → double: Converts arcminutes to radians.
mod2pi(double x) → double: Normalizes an angle in radians to the range [0, 2π).
pMod(double x, double y) → double: Normalizes an angle in radians to the range [0, 2π).
secToRad(double sec) → double: Converts arcseconds to radians.
toDeg(double rad) → double: Converts radians to degrees.
toRad(double deg) → double: Converts degrees to radians.