Johann Baptist Cysat

Swiss Jesuit mathematician and astronomer (1585-1657)

  • Fame43.2
  • Momentum0.0
  • Wikipedia225
Source-basedFalling
Lived 1585–1657, aged 72Switzerland
  • Wikipedia
    17 languages
    Cross-language footprint
  • Era
    1585–1657
    Aged 72
Summary
Updated 2026-06-19

Johann Baptist Cysat was a Swiss Jesuit mathematician and astronomer, after whom the lunar crater Cysatus is named. He was born in Lucerne, as the eighth of 14 children, to cartographer, historian and folklorist Renward Cysat (1545–1614).

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43.2
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Historical13.8
Source confidence60.0
Completeness70.0
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