A Galilea clock reproduces the daily evolution of the moon's phases.
Galilea's revolutionary design precisely reproduces the daily evolution of the moon phases during its 29.5 day cycle.
A conventional clock tracks civil time at your location, while the lunar disk is shaded or revealed in harmony with the actual lunar phase. The clock is then set, the lunar phase is set from by checking lunar-cycle tables, and a gear in the bottom of the base allows setting of the month and date. Once the clock is set, it will function automatically.
The Galilea Clock makes a unique and fascinating gift for the student, professional or amateur aspiring astronaut or astronomer, or physical scientist.
Requires 1 AA Battery (not included).