As an astrolabe affectionado, I was very excited when I found this application. Alas, my excitement was short-lived, as this program had nothing to do with astrolabes (except a picture of the instrument on the flash screen). I am using past tense as apparently the author caught some grief for calling the program astrolabe when it did none of the functions of an astrolabe. It has been renamed AstronomyCalc and is good at what it does - unit conversions, date and time calculations, coordinate conversions, and solar calculations.

For a great website on real astrolabes, check out Jim Morrison's http://astrolabes.org

The website for AstronomyCalc is http://web.me.com/markhamilton1/AstronomyCalc/AstronomyCalc.html

Pax vobiscum,

Galen