Clock correction device for displaying astronomical phenomena.

摘要

The invention relates to a correction device for a horological movement or an additional module for a clockwork movement to enable the application / superimposition of corrections to the necessary data as a function of the degree of longitude of the geographical position, the time zone and / or changes from summer time to winter or vice versa for a display of astronomical phenomena. This device in a simple embodiment consists of a flip-flop (2) bistable and optionally provided with an indicator (12) which allows the index (13) to visualize its position. Said control rocker (2) makes it possible to operate in both directions a secondary hour wheel (6a) which carries an indicator enabling the display of hourly data related to astronomical phenomena. Said secondary hours wheel (6a) is integral with a star (7), indexed by a jumper (8) mounted on a primary hour wheel (9) controlled by a mechanism for calculating astronomical phenomena. This device in a more sophisticated embodiment is to use a planetary gear (20b) to connect the control wheel (21b), the primary primary hour wheel (9) and a secondary hour wheel (6a / b). The control wheel (21b) is operated manually, directly or indirectly and controls an indicator (12b) which allows the reading of its position relative to an index (13b).