One of many objections raised to a standard moonphase show, which reveals the seen a part of the Moon through an aperture within the dial, is that it isn’t an correct illustration of what you see if you really take a look at the Moon over the course of a month. A half-Moon, for example, has, as seen from Earth, a roughly straight line throughout its face, since you’re a sphere, seen from the aspect, which is lit on one hemisphere and darkish on the opposite. To deal with this downside, moonphase shows had been invented which use a spherical miniature Moon, and essentially the most correct is from impartial watchmaker Christiaan Van Der Klaauw. Van Der Klaaw’s spherical moonphase complication is correct to at some point’s error in 11,000 years.
