We have developed a handy tool for
Visual Basic programmers, who take an interest in astronomy.
The
fundament is solar algorithms which work with very small uncertainties in
calculating solar positions. As an example we can mention that the solar zenith and azimuth angles are
calculated with uncertainties equal to +-0.0003 degrees in the period
from 2000 B.C. to 6000 A.D.
In addition we introduce exact functions
for Julian day, and Julian day reverse converters. The algorithms are already in use in our
product
multiKalenderen.
