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In order to have a list of the last revisions of the program and to see

their content, please go to this  page.

This application permits the design of a vertical declined / inclined / horizontal sun dial  with french, italic, babilonic, twilight hours and with day lines etc., moreover it includes horizontal and vertical analemmatic dials, azimuth ortho/stereographic, monofilar, ascendant lines, ecliptic hours, azimuth and elevation lines and more.

It is the most complete freeware program available on the web!!! It includes the computation of the wall declination, it simulates the behaviour of the dial, it includes a screensaver based on the result of your design!

Reverse engineering : starting from the measured elements of an existing vertical declining /horizontal dial, you can obtain the original unknown parameters of the dial : latitude, wall declination, style length etc. See example1 and example2.

For installation simply run "Setup Orologi Solari" and follow the instructions (you need administrator capabilities on your PC). The screensaver is automatically (but optionally only) installed with an example dial, in order to change the displayed dial change the setup in Desktop Properties.

This is the same application without automatic installation.

You can download this file if you find troubles because you don't have administrator capabilities on your PC. Just unzip the file and put everything in a directory. To run the program simply double click "Orologi Solari". To install the screensaver, copy "SunDialSaver.scr" and all the .gnm files to the Windows directory, then select the screensaver in Desktop Properties and set your desired .gnm file in screensaver setup.

This is the help file for "Orologi Solari".

This is a starting point for sundials understanding and design.

Unfortunately it is in Italian only, I hope to have English and Czech versions available soon.