Halo 22° and Upper Tangent Arc

This evening, nice halo's 22° on both side of the sun. And a couple of minutes later I could withness a upper tangent arc aswell.

Solargraph 2014-2015

It's always a special and exciting moment when you open the pinholecamera. In total 6 months exposure to all kind of weather conditions : snow, rain, freezing, fog and sunny.
This time two pinhole camera's were installed with the following result.