Hon Chon Jon Do (Complete illustration of the Astronomical Chart)

Hon Chon Jon Do is an astronomical chart made by Kwansanggam that shows the ancestors’ astronomical knowledge in the 18th century. Astronomy had been developed by our ancestors from thousands of years ago. In the time of the first Korean state founded by King Tangun, they engraved the constellations on the dolmens and based on it they did not miss the right season of farming. There is a star chart in the centre of the astronomical chart and various astronomical descriptions around it. The astronomical chart describes celestial sphere with the arctic projection as in the “Chonsang Ryolcha Bunya Jido” and has 2037 stars belonging to 278 constellations.