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Following Kepler

Tracing the history of medieval astronomy

Posted on December 25, 2025January 2, 2026 by VoijaRisa

Understanding Ptolemy’s Almagest: Book IV

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Completion

Almagest
85%

De Revolutionibus
0%
Astronomia Nova
0%

 

Important Posts

  • Almagest: Index
  • History of Ptolemy’s Star Catalog: Index
  • Star Catalog Manuscripts Index
  • My Library
  • Class Schedule
  • Class Materials
  • Spinoff Project Ideas

Other Pre-Telescopic Astronomy Websites

  • The Astrolabe Project
  • The Renaissance Mathematicus

Archives

Categories

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  • Astronomia Nova
  • Astronomical History
  • Astronomicum Caesareum Facsimile Restoration
  • Astronomy Before the Telescope
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