Calendar Published by the Office of Meteorology

An astronomical calendar used in the court in late Joseon period. Royal events and memorial services are indicated and it is more specific than Siheon calendar used by the general public. This book not only functioned as a calendar but was used as an almanac book to select good or bad days by the astrologists. After the day, the sections are divided into ‘Sang’, ‘Im’ and ‘Ha’. ‘Sang’ shows what the king is ‘recommended to do’ and ‘discouraged to do’ on that day, ‘Im’ writes down Yukim calendar(a kind of Chinese calendar) and ‘Ha’ writes down something related to the general public. 13 books are stored at Jangseogak.