Medieval flat star chart
The star chart is an ancient astronomical instrument, which can be said to be a handheld model of the universe. Its various functions also make it a sophisticated inclinometer and an analog computing device capable of solving several problems in astronomy. In its simplest form, it is a metal disk with patterns of wires, cuts, and perforations, allowing users to accurately calculate the position of celestial bodies. Astronomers throughout history have used it to measure the height of celestial bodies on the horizon, both during the day and at night; It can be used to identify stars or planets, determine the local latitude at a given local time, measure or conduct triangulation.
Popular Models
Random Model
ship octopus shell
668 View
Spinosaurus 3D Model Animation
918 View
Pagani Huayra Tricolore 2021
877 View
Large blue incubator
1095 View
Table of classical elements
495 View
Cut papaya
327 View