equatorialToLocalHorizontal(rightAscension, declination, t, longitude, latitude)eclipticalToEquatorial.eclipticalToEquatorial.altitude (angle above
horizon, in degrees) and azimuth (angle anticlockwise from south, in
degrees).
2. Meeus, Jean, 1991. Astronomical algorithms. Willmann-Bell, Richmond VA, USA. 429 pages.
eclipticalToEquatorial,
julianCenturyAnomaly,
julianDay, moonAngle,
siderealTime, sunAngle