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14 results for “Surya Siddhanta”
Glossary
2Articles
8- What the Vedic sciences are, and how they connectA map of India's classical knowledge traditions, from the Vedas through the six Vedangas to the applied sciences, and where Jyotish sits among them.Veda
- Shunya: how India gave the world zero, and why it matters to JyotishZero as a placeholder, zero as a number, and the astronomers who needed both to compute the sky.Ganita
- How to read a panchangThe five limbs of the Indian almanac, what each one measures, and how to make sense of a printed page.Panchanga
- Tithi: why the Hindu day is a lunar dayTwelve degrees between Sun and Moon: how the tithi is defined, why it varies in length, and why festivals follow it.Panchanga
- Sidereal and tropical: what the ayanamsa is, and why LahiriTwo zodiacs, one sky. How the slow wobble of the Earth's axis separates them, and how India chose a standard in the 1950s.Siddhanta
- Grahas are not planets: the nine "seizers"Why Jyotish counts the Sun, the Moon and two invisible points among its nine grahas, and what the word actually means.Jyotish · Hora
- Eclipses in the Indian sky: what is computed and what is keptHow the siddhantas compute a grahana, what Rahu and Ketu stand for in that computation, and sutak as a practice that varies from one tradition to another.Siddhanta
- Gochar explained: transits, sign changes and retrograde motionWhat a transit calendar actually lists, why a graha seems to move backwards, and how the classical texts and modern astronomy describe the same motion.Siddhanta
Findings
3- FSVS-F-2026-001How five published almanacs differ on tithi end times, and whyPrinted panchangas for the same city and date can disagree on when a tithi ends by a few minutes or, occasionally, by much more. We set out a method for comparing five almanacs side by side and…
- FSVS-F-2026-002Kshaya and vriddhi tithis across a decadeBecause a tithi can be shorter or longer than a civil day, some tithis never touch a sunrise (kshaya, 'lost') and others touch two (vriddhi, 'increased'). We describe how to count them over ten years…
- FSVS-F-2026-003Reading an old handwritten kundli: a methodMany families keep handwritten janma patrikas, often decades old, in Sanskrit or a regional language with time stated in ghatis from sunrise. We propose a step by step method for transcribing such a…