Chonsangryolchabunya Chart

Chonsangryolchabunya Chart is an astronomical chart compiled at the end of the 14th century in our country.

This is one of the valuable cultural heritages created by Korean people, whose original edition was the astronomical chart carved on a stone in Koguryo between the 4th century and early 6th century.

That stone-carved astronomical chart was lost during the anti-aggression struggle at the end of Koguryo dynasty. But an astronomical chart version based on the stone chart was found at the beginning of feudal Joson dynasty and several copies were made from this version in 1395. And Chonsangryolchabunya chart is one of them.

This chart was a little modified and supplemented as compared with the Koguryo astronomical chart carved on the stone.

There is a constellation in a big circle of the center and the different kinds of numeration tables and explanations around it.

The North Pole is placed at the center of the circle and all the stars are projected on the flat slab of stone. 282 constellations and 1467 stars are also marked on it. The vernal equinox point, autumnal equinox point, coordinates of the 28 fundamental stars in each constellation, equatorial circle, zodiacal circle, Arctic circle, longitudinal circle and the Milky Way are also drawn on it.

Chonsangryolchabunya chart is not only our proud astronomical heritage but also a valuable material for the study of the astronomy.