Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011jass...28..143l&link_type=abstract
Journal of Astronomy and Space Sciences. Vol. 28, no. 2, 143-153
Astronomy and Astrophysics
Astronomy
Jeongnamilgu, Hyeonjuilgu, Cheonpyeongilgu, Sundials, King Sejong Era
Scientific paper
The sundials produced in King Sejong era had the functions of accurate observation instruments and were fabricated in various forms such as Angbuilgu (hemispherical sundial). In this study, we investigated the literature, structural characteristics and principles of Hyeonjuilgu, Cheonpyeongilgu and Jeongnamilgu that were developed in Joseon to have the unique structures. Additionally, the sundials were reviewed in the perspective of technical history by comparing them with the sundials of China. For the restoration of the sundials, we identified the principle in which the light spots and shade of the sun were used, and drew the variations of the altitude and azimuth by the yearly motion of the sun on the Siban on the hemispheric and flat surfaces. Based on these results, we completed the design drawings of the three sundials and proposed the restoration models.
Kim Sang Hyuk
Lee Yong Sam
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