Pendant Astronomical Rings | H90

Pendant Astronomical Rings | H90 We present you a pendant miniature sundial - astronomical rings – model H90 . This is a universal sundial - for determining all latitudes. One of the most universal sundials in the 17th and 18th centuries. The sundial is characterized by rich ornamentation that gives it a unique character and makes it look delightful. The product is made of zamak and brass, varnished in accordance with the technology of the past centuries. It is made of alloy of zinc with aluminum or with aluminum and copper. Manganese, magnesium and titanium are also used as additives. Gift packaging: a beautiful gift box with an injection molding. A great decorative element. A wonderful gift for the travel lover. Dimensions:Diameter 4.5 cmDepth 0.4 cmWeight 0.05 kg The instrument consists of: - a throne - a movable sling that allows to determine the latitude. The throne can be moved to set the correct latitude. a meridian - a stationary ring with a latitude scale - a movable "equatorial" ring with an hourly scale a movable declination scale for determining the months (in the center of the device) - acting like a gnomon. Each month was divided into three periods of 10 days. The month names are symbolized by letters, eg O - October. In the center there is a tiny, movable element that allows you to set the correct month and date. To read the time, the equatorial ring should be unfolded so that it lies in a plane perpendicular to the meridian. Then you need to determine the latitude using the throne. Set the correct date on the declination scale. You should suspend the device with the throne after setting the real latitude where we are. The sun's rays will show the correct solar hour. Please note that the official time may be different from the solar time.