Astrological Ages & the Great Year (占星紀元與大年)

THE ASTROLOGICAL AGES — astrology's slowest clock: precession carries the vernal point backward through the zodiac at ~50.29″ a year, one sign every ~2,148 years, the full GREAT YEAR in ~25,772. 'When does the Age of Aquarius begin?' gets the only honest answer there is: IT DEPENDS WHERE YOU PUT THE ZODIAC'S ZERO — so this engine computes the crossing per NAMED school on the catalogue's own sidereal machinery (Lahiri → 2440 CE; Fagan–Bradley → 2379 CE), names the IAU-constellation convention (~2600) beside them, and serves Nicholas Campion's documented range of published claims (1447–3597 CE) as the data the disagreement is. THE LAWS AT LOAD: each school's own precession rate must reproduce the modern Great Year (~25,772 years); each zero epoch must land where the literature puts it (Lahiri ≈ 285 CE, Fagan–Bradley ≈ 221 CE) — the arithmetic that quietly puts the START OF THE AGE OF PISCES IN THE THIRD CENTURY CE, not at the Nativity of popular retelling; the Aquarius crossings pinned; the present age asserted Pisces under both schools. Serves the vernal point's live sidereal position, the current age with years elapsed, the countdown to Aquarius per school, and the full age table running backward through the zodiac. NO age meanings, no prophecy — the clock computed, the folklore declined. Pure compute, no LLM.

Cost: 1 TIAN Points per call. tRPC procedure astrologicalAges.current.