Retrograde

Retrograde (Rx) motion describes the visual phenomenon of a planet appearing to move backward through the zodiac as seen from Earth. No planet physically reverses its orbit; the effect arises from the differing speeds of Earth and the other planets. Retrograde stations — the moments when a planet slows to a standstill before reversing — are considered particularly potent in both classical and modern astrology. In Hellenistic astrology, Vettius Valens (Anthology, c. 175 CE) treated retrogrades as a condition of planetary irregularity, noting that a retrograde planet acts contrary to its own nature. William Lilly (Christian Astrology, 1647) used retrograde status in horary to indicate that matters would reverse or return to their original state. Demetra George's research into ancient sources (Ancient Astrology in Theory and Practice, 2019) confirms that retrogrades were seen as conditions weakening a planet's straightforward expression, though exceptional outcomes were still possible. The modern reframe — articulated by Dane Rudhyar and Robert Hand — treats retrograde planets in the natal chart as internalized energies: the planet's function is directed inward rather than expressed outwardly in the conventional way, leading to deeper but less immediately visible development. Mercury retrograde (3–4 times per year, ~3 weeks each) is the most commonly discussed, indicating a period suited to review, revision, and revisiting communications. Each planet's retrograde period has its own character based on how long it lasts and which domain of life it governs.