---
name: Ptolemy of Alexandria
name_greek: Κλαύδιος Πτολεμαῖος
eul_aid: phs
canonical: "https://eulogikon.org/authors/ptolemy-of-alexandria-phs"
period: Roman
dialect: Technical Koine
works_count: 13
license: "https://creativecommons.org/publicdomain/mark/1.0/"
---

# Ptolemy of Alexandria

*Κλαύδιος Πτολεμαῖος*

**eul_aid:** `phs` · [HTML page](https://eulogikon.org/authors/ptolemy-of-alexandria-phs)

Ptolemy of Alexandria, a 2nd century CE mathematician and astronomer. Thirteen technical treatises. Free to read and download from the Greek library archive.

## Works

- [Appearances](https://eulogikon.org/works/ptolemy-alexandria-appearances-phs-ah) — *Φαινόμενα* · `phs-ah`
- [Arrangement and Voting of Handy Rules](https://eulogikon.org/works/ptolemy-alexandria-handy-rules-phs-ab) — *Προχείρων κανόνων διάταξις καὶ ψηφοφορία* · `phs-ab`
- [Geography Books 1–3](https://eulogikon.org/works/ptolemy-alexandria-geography-1-3-phs-ae) — *Γεωγραφία Βιβλία Α΄-Γ΄* · `phs-ae`
- [Geography Books 4–8](https://eulogikon.org/works/ptolemy-alexandria-geography-4-8-phs-af) — *Γεωγραφία Βιβλία Δ΄-Η΄* · `phs-af`
- [Harmonics](https://eulogikon.org/works/ptolemy-alexandria-harmonics-phs-al) — *Ἁρμονικά* · `phs-al`
- [Hypotheses](https://eulogikon.org/works/ptolemy-alexandria-hypotheses-phs-aj) — *Ὑποθέσεις* · `phs-aj`
- [Inscription of Canopus](https://eulogikon.org/works/ptolemy-alexandria-canopus-inscription-phs-ad) — *Ἐπιγραφή τοῦ Κανώπου* · `phs-ad`
- [Mathematical Composition](https://eulogikon.org/works/ptolemy-alexandria-mathematical-composition-phs-ac) — *Μαθηματικὴ Σύνταξις* · `phs-ac`
- [Music](https://eulogikon.org/works/ptolemy-alexandria-music-phs-am) — *Μουσική* · `phs-am`
- [On Inclinations](https://eulogikon.org/works/ptolemy-alexandria-inclinations-phs-ak) — *Ἀποσπάσματα* · `phs-ak`
- [On the Analemma](https://eulogikon.org/works/ptolemy-alexandria-analemma-phs-ag) — *Περὶ τοῦ Ἀναλήμματος* · `phs-ag`
- [On the Faculty of Judgment and Sovereignty of the Soul](https://eulogikon.org/works/ptolemy-alexandria-judgment-sovereignty-phs-aa) — *Περὶ τῆς κριτικῆς δυνάμεως καὶ τῆς ψυχῆς ἡγεμονίας* · `phs-aa`
- [Tetrabiblos](https://eulogikon.org/works/ptolemy-alexandria-tetrabiblos-phs-ai) — *Τετράβιβλος* · `phs-ai`

## License and provenance

Eulogikon publishes public-domain Greek texts in cleaned, structured, readable form and makes no copyright claim over that preparation (Public Domain Mark 1.0, https://creativecommons.org/publicdomain/mark/1.0/). Author records and the underlying corpus are at https://eulogikon.org/.