Astroज्योतिष

Charter

Compute faithfully. Cite everything. Never sell fear.

The classical tradition argued with itself: Varahamihira called some older yogas impossible, Kautilya warned kings against over-consulting the stars, and the Brihat Samhita condemned fake astrologers. This charter keeps that critical voice — as product rules, not small print.

Eight commitments

  1. Tendencies, not fate. A chart is presented as tendencies to work with. The texts themselves say so: the Mahabharata calls destiny the seed and effort the soil (Anushasana Parva 6); the Yoga Vasishtha calls fate a name for past action that present action overcomes; the Tirukkural (ch. 62) says effort earns its wage even against fate.
  2. No fear-based predictions. The engine can compute the classical longevity, maraka and widowhood rules, but they are never shown as personal predictions. Classical text on them appears only on clearly framed history pages.
  3. Nothing sold as a remedy. No gemstones, pujas, yantras or "parihara" packages, and no affiliate links to them. The Brihat Parashara Hora Shastra does not prescribe gemstones at all. Where a traditional practice is mentioned, it is free conduct, charity or devotion, and labelled "traditional, untested".
  4. Every statement has a source. Each rule names its text, edition, chapter and verse, and whether that edition is public domain. Variant readings are shown, not smoothed over. Legends are labelled as legends, history as history.
  5. Declared conventions. The ayanamsha, sunrise rule, node type and engine are printed next to the results, because those choices — not the mathematics — decide whether a panchanga is right to the minute.
  6. No dark patterns. No countdown banners, fake scarcity or fear-to-purchase flows (India's CCPA guidelines on misleading advertisements, 2022, and on dark patterns, 2023).
  7. Your birth data is yours. Charts are computed in your browser. Birth data is personal data under India's DPDP Act 2023; when accounts arrive they will be opt-in, encrypted, deletable in one click, and never used to train AI.
  8. AI only explains, and must cite. When an AI explainer arrives, it will never compute positions — the engine does — and every sentence it writes must point to a rule card. Uncited sentences are blocked.

Method: how this preview computes

How we check it

The tests run on every build and are part of the repository:

Next on the list: Lahiri against the Indian Astronomical Ephemeris year by year, documented charts against Jagannatha Hora, and a full year of tithi end times at Ujjain, Delhi and Chennai against published panchangas. The pass rates will be published here.

Evidence: what science has found

We would rather you heard this from us. Controlled tests have not supported astrology's predictive claims:

So Astro treats Jyotisha as a living textual tradition, a cultural heritage and a tool for reflection — computed with care, cited to its sources, and never sold as certainty. That is both more honest and closer to what the old texts themselves argued.

Sources and copyright

The research behind this site read the scanned texts on the Internet Archive. Only about 30–40 of the 4,784 astrology items there are clean, out-of-copyright editions. Archive.org's licence tags are uploader claims, so we do not rely on them: editions are quoted at length only where public-domain status could be established (for example Chidambaram Aiyar's 1905 Brihat Jataka, Burgess's 1860 Surya Siddhanta, Shamasastry's 1915 Arthashastra). Later translations are summarised and cited, never copied. The full catalogue is in the library.

The rules we follow