parallax library
Functions
-
horizontal(
double delta) → double -
Returns equatorial horizontal parallax for a body at distance
deltaAU. -
topocentric(
double ra, double dec, double delta, double rhoSPhi, double rhoCPhi, double h, double sinPi) → ({double dec, double ra}) - Topocentric position using the rigorous method (40.2, 40.3).
-
topocentric2(
double dec, double delta, double rhoSPhi, double rhoCPhi, double h) → ({double dAlpha, double dDelta}) - Non-rigorous topocentric corrections (40.4, 40.5).