• 제목/요약/키워드: Jeokdogyeongwiui (equatorial armilla)

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조선 천체위치측정기기의 구조 혁신 - 소간의, 일성정시의, 적도경위의를 중심으로 - (A STUDY ON THE STRUCTURE INNOVATION OF ASTRONOMICAL INSTRUMENTS IN JOSEON DYNASTY - FOCUSING ON THE SOGANUI, THE ILSEONGJEONGSIUI, AND THE JEOKDOGYEONGWIUI -)

  • 김상혁;민병희;이민수;이용삼
    • 천문학논총
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    • 제27권3호
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    • pp.61-69
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    • 2012
  • The Ganui (簡儀, simplified armillary sphere) is a representative of astronomical instruments in Joseon Dynasty of Korea, as well as Yuan Dynasty and Ming Dynasty of China. In early 15th century, Joseon's scientists and engineers uniquely developed the Soganui (小簡儀, small simplified armillary sphere) and the Ilseongjeongsiui (日星定時儀, sun-and-star time determining instrument) from the structural characteristic of Ganui. These two astronomical instruments had a new design by the miniaturization and felt convinced a similar performance of Ganui in the harmony with Korean Astronomy and Astrology Cultures. Since mid-18th century after the enforcement of shixian-li (時憲曆), the Soganui and Ilseongjeongsiui handed over the Jeokdogyeongwiui (赤道經緯儀, equatorial armilla) by a change of the observational framework such as the time and angle measures. The Jeokdogyeongwiui made by Gwansanggam (觀象監, Bureau of Astronomy in Joseon Dynasty) adopted the new observational framework. We studied the structural characteristics and scientific values of these 3 astronomical instruments with theirs observation methods.