Astrology · Translation
Tetrabiblos
Claudius Ptolemy; translated by J. M. Ashmand
An early systematic account of astrology. Book I lays out the qualities of the planets, signs, and configurations used by later astrologers.
Open the edition page ↗Where to begin
Book I, chapters IV (planetary powers), XX (domiciles), and XXII (exaltations).
Keep in mind
Ashmand translates a Greek paraphrase attributed to Proclus, not directly the earliest Greek text. The edition also contains later notes. Its historical physical explanations are not modern astronomical findings.