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 found that the epoch of the stars in chart is combined from the first and fourteenth centuries. Most stars with declination lower than 50 degrees represent the night sky of the first century, the era of Koguryo, while stars located higher than 50 degrees are positioned to represent the epoch close to the fourteenth century, the era of early Chosŏn dynasty. Dealer: Martayan Lan, New York Available also through the Library of Congress Web site as a raster image. Acquisition contol no. 2013-021
Unknown author<span style="display: none;">Unknown author</span>
1777
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