This class estimate extral-terrestial solar radiation,
sunset time, sunrise time, daylight hours
Based on the article:
Empirical Model for Estimating Global Solar Radiation
on Horizontal Surfaces for Selected Cities in
the Six Geopolitical Zones in Nigeria
By:
M.S. Okundamiya and A.N. Nzeako
Example:
lat_deg = 11
lon_deg = 76
doy = 180
foo = sun(doy, lat_deg, lon_deg)
hourly_etr = foo.hourly_ETR(11.0)
daily_etr = foo.daily_ETR()
risetime, settime = foo.set_rise()
Definition at line 13 of file sunlib.py.