SiddhantaExplainer
Sidereal and tropical: what the ayanamsa is, and why Lahiri
Two zodiacs, one sky. How the slow wobble of the Earth's axis separates them, and how India chose a standard in the 1950s.
7 min read · 12 October 2026
Shunya
Siddhanta
Plain-language pieces on the Vedic sciences, written and reviewed by the School’s faculty. Every Sanskrit word is glossed the first time it appears.
3 articles
- Siddhanta
Eclipses in the Indian sky: what is computed and what is kept
How 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.
7 min read · 30 September 2026
- SiddhantaExplainer
Gochar explained: transits, sign changes and retrograde motion
What a transit calendar actually lists, why a graha seems to move backwards, and how the classical texts and modern astronomy describe the same motion.
8 min read · 29 September 2026