Jyotiṣa · ज्योतिष · the science of light
The sky, computed.
The sources, shown.
Astro works out the panchanga and the grahas from modern astronomy, then shows you the verse, the edition and the convention behind every result — from Varahamihira, Parashara, Aryabhata and the Sūrya Siddhānta, read from the scanned texts themselves.
Pañcāṅga — the five limbs of this moment
The nine grahas
| Graha | Rāśi | Degree | Nakṣatra · pada |
|---|
Sidereal longitudes, true Lahiri ayanāṃśa, apparent positions. Rāhu and Ketu are the mean lunar nodes.
Lagna · the rising sign
Ayanāṃśa
The gap between the tropical and sidereal zodiacs. This is India's official Lahiri (Chitrapakṣa): 23°15′00.658″ at 21 March 1956, carried by IAU 2006 precession. Our Makara and Meṣa saṅkrānti moments for 2026 land within a minute of Drik Panchang's published times — how we check.
What no other site combines
Twelve features from the blueprint. Three are live in this preview; the rest are being built against the texts.
Pañcāṅga with declared conventions
Every limb with its end time, its formula and its verse. The ayanāṃśa, sunrise rule and engine are named, never hidden.
Heritage mathematics
Aryabhata's sine table against your processor, the kuttaka solver, Kauṭilya's clock, Katapayadi, the Saptarṣi era and Ramanujan's π.
The library
A research paper and eleven sets of notes: what each text teaches, which editions are reliable, and which are free to quote.
"Why this?" on every line
Each statement in a reading opens to its rule card: the computed condition, the verse, the edition, a link to the scan, and the variants.
School switcher
The same chart read by Varāhamihira, Parāśara, Jaimini and KP, with the texts' own disagreements side by side.
Birth-time sensitivity
"±5 minutes moves your lagna from X° to Y°" — and a 150-amśa Nāḍī microscope that shows how fragile a reading is.
Nāḍī kāraka reader
The Bhṛgu Nandi Nāḍī method reads life areas from karakas and Jupiter–Saturn transits — no birth time needed.
Birthday year chart
Tājika varṣaphala from the 1587 Tājika Nīlakaṇṭhī: muntha, the year lord's scoreboard and the sahams.
Ask-now praśna with a journal
A chart for the moment of your question, the Ṣaṭpañcāśikā's rules — and an outcome journal so you can check the record yourself.
Explainable muhūrta
Every pass or fail cites its verse from the Kālaprakāśikā or Muhūrta Cintāmaṇi — with Basavaṇṇa's warning not to wait on lucky days.
Two skies, two calendars
The Sūrya Siddhānta's sky against NASA's, and Vākya against Dṛk almanac dates — measured history, side by side.
Lineage map and wisdom cards
The rishis "as tradition tells it" and "as history dates it", and verified-only daily wisdom from Chāṇakya, the Kural and the epics.
Tendencies, not fate
“Wealth is the star for wealth; what will the stars do?”Kauṭilya, Arthaśāstra IX.4 — R. Shamasastry's translation, 1915 (public domain)