The new version 5.5 of my sundial software SONNE (freeware) is for download on my homepage www.helson.at.
It contains a new sundial type which was presented by Fred Sawyer at the 2017 NASS conference. Fred called it a 'Solar Decliner' but, I think we should name it a 'Sawyer Decliner' because of Fred's fascinating new idea to construct a portable sundial for mean time. If you unzip the downloaded version 5.5, please have a look at the README file. Have fun Helmut -- Helmut Sonderegger www.helson.at --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
