Chonsangryolchabunyajido is an astronomical chart made in the late fourteenth century.
It dates back to 1395, based on the Koguryo’s astronomical chart carved on a stone.
The Koguryo’s astronomical chart (a table of constellations carved on a stone of about 2 meters in length and 1.2 meters in width) made between the late fifth century and the early sixth century shows 1 467 stars that were visible in the night sky of Pyongyang at that time. They are categorized in 282 constellations in a circle. The black ink copy of them on a piece of paper was used as base data for astronomical observation and calendar compilation.
Chonsangryolchabunyajido (122.8cm wide and 209.9cm long) was considered a very scientific and accurate astronomical chart in those days.
As one of the precious cultural legacies demonstrating the astronomical development of our country in the middle ages, it provides valuable information for the study of astronomical history.