Overview
Tycho was an Astronomer and Scientist.
Life and dates
Attested activity
- AD 1573 to AD 1620 明萬曆間Directly stated · Draft History of Qing 47, passages 205, 214, 223, 232
- AD 1600 萬曆二十八年Directly stated · Draft History of Qing 47, passages 211, 229
- AD 1585 萬曆十三年Directly stated · Draft History of Qing 47, passage 246
Origins and identity
- Group Westerner 西人Directly stated · Draft History of Qing 47, passages 205, 214, 223, 232, 246
Career and standing
- astronomer 西人測天者Strongly inferred · Draft History of Qing 47, passages 205, 214, 223, 232, 246
Learning and skills
- Skill planetary observation and geometric reduction 測星及平三角推步 · Level practicedDirectly stated · Draft History of Qing 47, passages 205, 210, 214, 223, 232, 246, 251
Works and attributed material
- Observation · Observer · Paraphrased
Events and relationships
- Derived Jupiter eccentricity, deferent, and epicycle radii from an eccentric modelAD 1573 to AD 1620 明萬曆間 · Scholarly · ComputerDated from the passage context · Draft History of Qing 47, passages 205, 210
- Derived Mars eccentricity, deferent, and epicycle radiiAD 1573 to AD 1620 明萬曆間 · Scholarly · ComputerDated from the passage context · Draft History of Qing 47, passages 223, 228
- Measured Jupiter at three oppositionsAD 1573 to AD 1620 明萬曆間 · Scholarly · ObserverDirectly stated · Draft History of Qing 47, passages 205-209
- Measured Jupiter secondary deferent radius as 1,929,480 per 10,000,000AD 1573 to AD 1620 明萬曆間 · Scholarly · ObserverDated from the passage context · Draft History of Qing 47, passages 205, 214
- Measured Mars at three oppositionsAD 1573 to AD 1620 明萬曆間 · Scholarly · ObserverDirectly stated · Draft History of Qing 47, passages 223-227
- Measured Mars secondary deferent radii at combined solar and Martian apogee and perigeeAD 1573 to AD 1620 明萬曆間 · Scholarly · ObserverDated from the passage context · Draft History of Qing 47, passages 223, 232-236
Show 3 more source-backed claims
- Measured Venus at dawn and dusk maximum solar elongations and derived apogee and eccentricityAD 1585 萬曆十三年 · Scholarly · ObserverDirectly stated · Draft History of Qing 47, passages 246-251
- Placed Jupiter apogee at Shouxing 8°40′ with annual motion 57″52‴AD 1600 萬曆二十八年 · Scholarly · ComputerDirectly stated · Draft History of Qing 47, passage 211
- Placed Mars apogee at Quehuo 28°59′24″ with annual motion 1′7″AD 1600 萬曆二十八年 · Scholarly · ComputerDirectly stated · Draft History of Qing 47, passage 229
Source notes
- Historicity historicalDirectly stated · Draft History of Qing 47, passage 205
References in the histories
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