Rotating star chart astronomical instrument (1 risultati)

A beautifully printed rotating disk of the stars, white on a black field. Approximately 250mm in diameter, within a heavily embossed and gilt lettered and decorated framework of stiff black paper boards, on the rear is a pastedown of printed information, all in German. Very fine, very well preserved and still completely functional, the gilt with a little wear in places, a little bumping. A BEAUTIFUL ANTIQUE PLANISPHERE, or star-map designed to illustrate the movement of the stars. It provides the position of the stars in the sky for each hour of the year. In the late 19th century these started to become more popular with amateur astronomers, astrologists and in pedagogical gatherings. This Planisphere consists of a base plate showing the starry sky, the upper plate has a scale division in months, days and hours.…