Hon Chon Jon Do, a complete illustration of the astronomical chart, showcases the astronomical development of Korea in the 18th century. It means a “general picture of the heaven.”
At the time, Korean astronomers projected onto a piece of paper the stars they had observed at night, and illustrated astronomical phenomena, complete with explanations and astronomical constants. They are mostly about the astronomical findings Korea had recorded for thousands of years and partly about the Western development in astronomy till the first half of the 18th century.
Hon Chon Jon Do was put on the Memory of the World International Register by UNESCO in May last year.
