Showcasing Seventeenth-Century Jesuit Astronomy In Asia : The Lead Up To The First Scientific Observations Of A Solar Eclipse Made In Siam

• The first great ruler to encourage the adoption of Western culture and technology throughout Siam was King Narai, who also had a passion for astronomy. He showed this by encouraging French and other Jesuit missionaries, some with astronomical interests and training, to settle in Siam from the early 1660s. One of these was Father Antoine Thomas, and he was the first European known to have carried out scientific astronomical observations from Siam, in 1681 and 1682. Later, the lunar eclipse of 11 December 1685 assumed an important place in the history of Thai astronomy when a contingent of French missionary-astronomers joined King Narai and his court astrologers and observed it from the King’s country retreat near Lop Buri. This event so impressed the King that he approved the erection of a large modern well-equipped astronomical observatory at Lop Buri. Construction of Wat San Paulo Observatory—as it was known—began in 1686 and was completed in 1687. A second contingent of French Jesuit astronomers settled in Lop Buri at about this time, and were involved in various astronomical observations. Arguably, the last of these of any importance was of the partial solar eclipse of 30 April 1688, just one week before the sudden demise of scientific astronomy in Siam. In this paper we examine King Narai’s enlightened attitude towards Western science and technology and his growing interest in Western astronomy, before discussing the observations that he and/or the Jesuit missionaryastronomers made leading up to and including the partial solar eclipse of 30 April 1688. We then explore the growing disquiet among some members of the Royal Family that triggered a coup on 5 June 1688 when King Narai was overthrown and most of the Western missionary-astronomers were expelled from Siam.

Ämnesord

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Nyckelord

1688 solar eclipse

astronomical observations

French Jesuit astronomers

King Narai

Siam

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