Sun Angle Calculator
PROGRAM ANGLECALC  This
JavaScript program uses the equations developed in this text to
calculate the sun altitude angle (Eqn. 3.17), sun zenith angle (Eqn.
3.8) and sun azimuth angle (Eqn. 3.19). Also, with input of the
collector (or tracking axis) tilt angle and tilt azimuth, we calculate
the angle of incidence between the sun rays and the collector aperture
(Eqns. 4.3, 4.19, and 4.24.). We use Eqn.(3.22) to calculate the sunset
and sunrise time, and then Eqn.(3.23) to calculate the hours of
sunshine for the day.
RUN ANGLECALC
