I am glad for interest wich is rising about using CD as sundial, by means of refraction. My friend Cesare Lucarini and I realized since last year, on CD, prototypes of azimuth, equatorial and altitude sundias, without gnomon! The equatorial sundial may be also used as sun compass. In the next issue of "Astronomia", organ of "Unione Astrofili Italiani" will be, we hope, an our article wich will explain in detail our results. After the issue we will send the article to anyone will ask for it. Greatings. Mario Catamo.
Mario Catamo Via Eutropio, 28 00136 - Roma Tel. 0635452161
