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Pysolar is a collection of Python libraries for simulating the irradiation of any point on earth by the sun. It includes code for extremely precise ephemeris calculations.

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When I look at 80N 0E at the summer solstice vs 80S 0E at the winter solstice, I get 746 vs 955 W/m^2, which seems weird. ``` Fri Dec 21...

I understand there may be a will to have pysolar only depend on the standard library. However for some applications it would be extremely useful to use numpy instead of...

help wanted

There seems to be a problem registering to the mailing list. I tried twice, by sending email to the address listed in the README. I got the following reply from...

As previously reported this method returns an error: This fails using ``` import pysolar import datetime az=pysolar.solar.get_azimuth_fast(48, 14, datetime.datetime(2015, 3, 10, 16, 30)) print('{}'.format(az)) ``` The reason for there failure...

No leap second introduced. Next likely update : December 31, 2024.