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 Sun in Capricorn sits in a feminine, cardinal earth sign, and Capricorn begins at the December solstice, when daylight in the northern hemisphere is shortest. That is a verifiable astronomical fact; the tradition's reading comes after it. The tradition lists no domicile, exaltation, detriment or fall for the Sun here, though Capricorn is the Moon's detriment and Mars's exaltation. Domicile is the sign a planet rules, its home. Saturn is the domicile lord and, like the Sun, belongs to the day team, so Hellenistic astrologers place lord and planet on the same team. Sect is the tradition's way of sorting the planets into a day team and a night team. Saturn is a malefic, a planet the tradition treats as difficult in nature; sharing a team does not make the relationship easy, only coherent. 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
- Vettius Valens, Anthology, Book I
- 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: 'sect-mates' reworded as same team. Detriment is stated as a table fact where it appears; its Hellenistic status is disputed (secondary source only). 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)
- June solstice: Sun at its northernmost position; December solstice: shortest daylight in the north en.wikipedia.org (opens in a new tab)
- Anthology, ten books, c. 150–175 CE, Riley translation online 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)