MapKujang chʻŏnsang yŏlchʻa punya chido.
舊藏 天象 列次 分野 之圖. | Old Sky Chart Showing Rank and Distribution of Stars Originally engraved in a stone stele in A.D. 1395. Several Korean scholars studied the chart and estimated the observational epoch of the stars dating between B.C. 1C and A.D. 6C. Changbom Park...
- Date: 1777