The Celestial Wheel (चक्र)
Visualize the dance of the planets. Explore geocentric and heliocentric models and observe the intricate patterns of celestial motion over time.
Explore ChakraThe Celestial Map (भगोल)
An interactive sky map showing the positions of planets, constellations, and zodiac signs. Control time to see the celestial bodies move across the sky.
Explore BhagolHindu Cosmological Time Scale (हिन्दू काल)
Journey through the vast expanses of time as conceptualized in Hindu cosmology. Learn about Yugas, Manvantaras, and the grand cycles of creation and dissolution.
Explore Hindu TimeThe Celestial Sphere (गोल)
Grasp the fundamentals of spherical astronomy. Visualize the celestial sphere, understand coordinate systems, and see how stars and planets appear to move across the sky.
Explore GolJyā & Koṭi-Jyā (ज्या)
Visualize the ancient Indian trigonometric functions of Jyā, Koṭi-Jyā, and Utkrama-Jyā. Understand how sine, cosine, and versine originated from the chord and parameters of a circle.
Explore JyāEpicycles in Indian Astronomy
Explore the epicycle models used in texts like Surya Siddhanta. Understand the concept of manda and śīghra epicycles used to calculate planetary positions.
Explore EpicyclesYearly Ephemeris Graphics
View the position of all traditional planets across the zodiac signs as smooth curves covering an entire year. See retrograde periods and planetary alignments intuitively.
Explore Ephemerisआर्यभटीय
Magnum Opus of Aryabhat
Aryabhat's Number System (आर्यभटीय)
Aryabhat introduced an ingenious system for representing numbers using the Devanagari script. This system provided a compact and sophisticated method for encoding large numerical values.
Aryabhat Number SystemDashagitika (दशगीतिका)
Explore the Dashagitika, the first chapter of Aryabhat's Aryabhatiya, which lays down fundamental astronomical parameters and the unique alphabetic numeral system in 13 concise verses.
Explore DashagitikaGolapada (गोलाध्याय)
Delve into the Golapada, the fourth chapter of Aryabhatiya, focusing on spherical astronomy, the Earth's rotation, eclipses, and the celestial sphere in 50 verses.
Explore GolapadaAdd Number System to Browser
Save the content of this link as bookmarklet in your browser. Then, Open up any website and click on it to convert any Devanagari text to Aryabhat Number or vice versa.
Open (then copy content)