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born as Yasui Santetsu (), later called Motoi Santetsu (), was a Japanese scholar, go player and the first official
born as Yasui Santetsu (), later called Motoi Santetsu (), was a Japanese scholar, go player and the first official astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either o ...
appointed of the Edo
Edo ( ja, , , "bay-entrance" or "estuary"), also romanized as Jedo, Yedo or Yeddo, is the former name of Tokyo.
Edo, formerly a ''jōkamachi'' (castle town) centered on Edo Castle located in Musashi Province, became the ''de facto'' capital of ...
period. He revised the Chinese lunisolar calendar
A lunisolar calendar is a calendar in many cultures, combining lunar calendars and solar calendars. The date of Lunisolar calendars therefore indicates both the Moon phase and the time of the solar year, that is the position of the Sun in the ...
at the shogunate request, drawing up the Jōkyō calendar which was issued in 1684 during the Jōkyō era. In 1702, he changed his name to ''Shibukawa Sukezaemon Shunkai'' and retired by 1711. As a go player, he was affiliated with the Yasui house, calling himself initially (after his father) Yasui Santetsu II. He is mentioned as a Tengen player in Yamashita Keigo 's book: ''Challenging Tengen''.
Shibukawa Shunkai (as Yasui Santetsu) is the central character in the 2012 film '' Tenchi: The Samurai Astronomer'' by Yōjirō Takita
Yōjirō Takita (滝田 洋二郎 ''Takita Yōjirō'', born December 4, 1955) is a Japanese filmmaker. Takita received an Oscar for Best Foreign Language Film for his 2008 drama '' Departures''. It marked the first time a Japanese film won the a ...
.
Notes
1639 births 1715 deaths 18th-century Japanese astronomers Science and technology during the Edo period 17th-century Japanese astronomers Japanese Go players 17th-century Go players {{japan-astronomer-stub