Old Book on Astronomy

Pyongyang, May 25 (KCNA) — It was in 1343 that the astronomy-related book “Susiryokchopbopripsong” written by Kang Bo, a civil official and mathematician in the period of Koryo (918-1392), was brought out.

Carried in the book are numeration tables for making calendar and astronomical data.
The book has three sections, which deal with the theories on movements of the sun and the moon and a theory on Mercury, Venus, Mars, Jupiter and Saturn, together with an appendix to mathematical theories on multiply and division.
The book is of great significance as it is a collection of astronomical calculations made in a peculiar way and shows the astronomical achievements gained by the then Korean people.

Image credit: https://www.flickr.com/photos/ninjawil/2299529701/

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