Studies · computed datasets
Original data, real astronomy
Every dataset below is computed by our deterministic engine (Skyfield + JPL DE421 ephemeris, Lahiri True Chitra Paksha ayanamsa) from public inputs. Each study states its method — and its exclusions — up front. Cite freely with a link.
Is your Vedic sign different? We computed every day of the year
The sidereal Sun sign differs from the Western tropical sign on 80% of days. Here is the full day-by-day table and why the two systems drift.
The Sade Sati calendar, 2015–2040
Saturn's true sidereal transits computed to the day — every rising, peak, and setting phase for all 12 moon signs, past and future.
The sidereal Moon signs of 50 icons
From documented birth dates, computed honestly: 30 usable charts (20 excluded because the Moon changed signs that day — we show which).
Computed 2026-07-14 · full methodology