国立科学博物館所蔵の江戸時代天球儀に示される特徴とその変遷

概要

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Eight celestial globes manufactured in Edo era are stored in National Science Museum. This is the largest collection of Japanese celestial globes in Japan. In the previous works, characteristics of five celestial globes such as star maps, manufacturer, date, skill of manufacture, and so on are reported. In this paper, a consequential study of characteristics of rest three globes, which have some damaged flaws on their surfaces, are reported. From the comparative study of referenced star map of eight celestial globes, they are found to be classified into three types. First-type: celestial globes manufactured in the early term of Edo era which had been designed following on traditional Chinese star maps. Second-type: in middle term of Edo era which had been designed following on 'Tennmon Seisyou' (1699), Harumi Shibukawa's new star map based on his observational results. Third-type: in late term of Edo era which had been designed following on star maps influenced in western astronomy thorough 'Gisyo Kousei' (1752). However, this tendency dose not fit for all globes, because the manifacturer of each globe has different astronomical background. Some discussion on this matter is also shown in this paper.
国立科学博物館の論文