Source books · Astrology
Tetrabiblos
Ἀποτελεσματικά
How this book fits
- Traditions
- Astrology
- Role in the tradition
- Primary source Written from inside the tradition: scripture, revelation, a grimoire, a manifesto or a practical treatise.
- Public attention
- Major Wikipedia has an article about it in 17 languages.
Read it
- Ashmand's translation ↗ sacred-texts.com checked against the Internet Archive's copy of January 24, 2026, because the site refuses scripts · archived copy
- Read at gutenberg.org ↗ gutenberg.org checked September 11, 2026
- Read at penelope.uchicago.edu ↗ penelope.uchicago.edu
From Wikipedia
Tetrabiblos, also known as Apotelesmatiká and in Latin as Quadripartitum, is a text on the philosophy and practice of astrology, written by the Alexandrian scholar Claudius Ptolemy in Koine Greek during the 2nd century CE (c. 90 CE – 168 CE).
From the Wikipedia article Tetrabiblos, revision 1368458905, under CC BY-SA 4.0. Wikidata Q1879027: “essay by Ptolemy”.