Iwahashi Zenbei’s Sunspot Drawings in 1793 in Japan

DOI DOI PDF Web Site 被引用文献12件 参考文献51件

書誌事項

公開日
2018-01
資源種別
journal article
権利情報
  • http://www.springer.com/tdm
DOI
  • 10.1007/s11207-017-1213-1
  • 10.48550/arxiv.1711.08143
公開者
Springer Science and Business Media LLC

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説明

Three Japanese sunspot drawings associated with Iwahashi Zenbei (1756-1811) are shown here from contemporary manuscripts and woodprint documents with the relevant texts. We revealed the observational date of one of the drawings to be 26 August 1793, and the overall observations lasted for over a year. Moreover, we identified the observational site for the dated drawing at Fushimi in Japan. We then compared his observations with group sunspot number and raw group count from Sunspot Index and Long-term Solar Observations (SILSO) to reveal its data context, and concluded that these drawings filled the gaps in understanding due to the fragmental sunspots observations around 1793. These drawings are important as a clue to evaluate astronomical knowledge of contemporary Japan in the late 19 th century and are valuable as a non-European observation, considering that most sunspot observations up to mid-19 th century are from Europe.

2017/11/16 accepted for publication in Solar Physics

収録刊行物

  • Solar Physics

    Solar Physics 293 (1), 8-, 2018-01

    Springer Science and Business Media LLC

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