Calculate solar postion parameters
Pre-calculates astronomical solar position components for Earth-location sampling functions.
solar(day)
day
: vector of date-time valuesA list of the following values for each input time: - solarTime: solar time
sinSolarDec: sine solar declination
cosSolarDec: cosine solar declination
https://gml.noaa.gov/grad/solcalc/azel.html
Michael D. Sumner
No account is made for horizon refraction, but this was available in the original (Javascript) code.