Astronomy: Calendars and Timekeeping: Sundials

Descriptions of these vertical post sundials, why they work, detailed account of the maths necessary to plot the hour lines.

Describes different types of sundials, has other technical and general information. Offers free Shadows software to compute sundials of a number of different types for anywhere in the world.

Includes British and international sundials with description and exact location; sun compasses.

Shareware / freeware software for design and planning of the most popular dials.

Software to design a vertical (wall mounting) sundial for walls that face up to 60 degrees away from due-south.

Describes sundial parts and names, the basic types, and has make your own pages for three simple types of dial.

A page from Jack Aubert, with technical information on construction and placing.

Describes the history of sundials, and their development in Europe from the time of the Greeks. Includes literary and poetic references.

On-line catalogue, with facilities for search, adding records, map, statistics, articles and references.

A major information source, with projects, detailed technical information, links to related sites, listings of societies.