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Abstract

The invention is directed to an apparatus for representing orbital phenomena. It comprises a sphere (20) pivoting about an inclined axis (8) on bearings (38, 60) integral with a support ring (23) mounted adjustable in a slide (26) and locked in the selected position by means of a screw (28), of a local horizon disc (1) pivoting on bearings of the sphere (20), of an ecliptic crown (31) fixed to a ring (21) also pivoting about the globe axis (8), of a drive motoreducer (39) for driving either the ecliptic crown in rotation in the backward direction or the celestial sphere (20) in the direct direction thereby evidencing the referential change and renewing the relationship between apparent motions and real motions. The didactic method implements an observer represented by a figurine (3) placed at the center of the horizon disc (1) itself traversed by the integral axis (8) at 90.degree. of a cardinal axis allowing to sweep during its rotation a virtual plane with a north-south orientation within the ecliptic crown (31). The invention relates to uses of didactic equipment and to the representation of astronomical, physical and chemical phenomena, the professionals concerned by the astronomical phenomena and the periods of sunshine: farmers, architects and town planners, astrologers, chronobiologists, cosmologists, seamen, oyster farmers, landscape-gardeners, marine biologists, etc.

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First Claim