Release 0.2.0 implements more accurate algorithm.

Release 0.2.0 has the completed implementation of the solar position algorithm described by Reda and Andreas (NREL 2005). I've also added a unit testing framework and updated the license to the GNU General Public License, version 3, from version 2.

At this point, Pysolar has basic functionality, but it is relatively untested. I did validate it against the data in the 2005 paper by Reda and Andreas; it agrees to 4 significant figures, but that's just one data point.

If you use Pysolar, please let me know how accurate it is. It's difficult to measure sun location with great precision, but I'd love to hear reports of "Yeah, it worked to within a degree over the course of an afternoon in Spain."

For examples of usage, check http://pysolar.sourceforge.net/#examples

Brandon Stafford
<first_name> @ pingswept org