Hellenistic
The astrology of the Greek-speaking Mediterranean from roughly the 1st century BCE to the 7th century CE, as recorded by authors such as Vettius Valens, Dorotheus and Ptolemy.
1 Oct 2026
The standard dignity table lists Capricorn as the Moon's detriment, the sign opposite its domicile of Cancer. Domicile is the sign a planet rules, its home. Capricorn is a feminine, cardinal earth sign, so gender and sect agree, which keeps the picture from being uniformly weak. Sect is the tradition's way of sorting the planets into a day team and a night team. Detriment as a named dignity was formalized after the Hellenistic period; it reads as reduced authority, not a judgment of the person. Saturn, the domicile lord, belongs to the day team and is a malefic, a planet the tradition treats as difficult in nature. In a night chart it is contrary to sect. Mars is exalted in Capricorn and Jupiter is in fall, points about the wider chart. In Dorotheus' scheme the Moon rules earth by night, adding support. Saturn's sign, house and dignity are the next facts to read.
A note on “detriment”: the early Hellenistic texts note a planet opposite its own sign without naming it. The term is defined only in late and medieval sources, and scholars disagree on whether the idea was implicit earlier.
Sources
- Ptolemy, Tetrabiblos, Book I
- Dorotheus of Sidon, Carmen Astrologicum
- Chris Brennan, Hellenistic Astrology: The Study of Fate and Fortune (2017)
What was checked
An AI research review checked this text against sources on 1 Oct 2026. No person has reviewed it.
Reviewer's notes
Checked sign element, modality and gender, domicile, exaltation, detriment and fall against the project data and Ptolemy, plus sect and sign relationships; all consistent. Changed: detriment is now attributed to the standard dignity table, with a note that it was formalized after the Hellenistic period; 'sect contrary' reworded. triplicity lords match the Dorothean table (secondary sources; Carmen Astrologicum itself not opened); gender/sect match claims rest on Ptolemy and a secondary source. Source works confirmed to exist and to treat the topic (Valens Book I opened; others via secondary pages).
Sources consulted
- Loeb text of Ptolemy, Tetrabiblos I: planet genders (I.6), diurnal/nocturnal planets and Mercury as morning/evening star (I.7), masculine/feminine and bicorporeal signs (I.11–12), houses of Sun, Moon and Saturn (I.17), exaltations and depressions (I.19); Ptolemy does not rank domicile above exaltation penelope.uchicago.edu (opens in a new tab)
- Riley's translation, Valens Anthology Book I: day/night sect of each planet, and the natures of the signs (house of, masculine/feminine, bicorporeal) skyscript.co.uk (opens in a new tab)
- table of dignities; Hellenistic authors treated domicile, exaltation, triplicity and bounds as comparably influential, ranking and point scores came later (secondary source) en.wikipedia.org (opens in a new tab)
- Dorothean triplicity table (fire Sun/Jupiter/Saturn, earth Venus/Moon/Mars, air Saturn/Mercury/Jupiter, water Venus/Mars/Moon); secondary source augurine.com (opens in a new tab)
- quotes Dorotheus on the fire triplicity (Sun, Jupiter, Saturn by day; Jupiter, Sun, Saturn by night) and that all three lords count; secondary source sevenstarsastrology.com (opens in a new tab)
- masculine signs are diurnal and feminine nocturnal; ancient authors (Dorotheus, Serapio) say planets do better in signs of their own gender or sect; secondary source sevenstarsastrology.com (opens in a new tab)
- detriment as a distinct dignity is not formally defined in the Hellenistic tradition until later; early texts note only trouble for a ruler opposite its domicile (secondary, and the question is disputed) sevenstarsastrology.com (opens in a new tab)
- Carmen Astrologicum (Pentateuch), Pingree translation 1976 en.wikipedia.org (opens in a new tab)
- Brennan, Hellenistic Astrology: The Study of Fate and Fortune, February 2017, survey of the tradition's techniques goodreads.com (opens in a new tab)