Each series is a complete guide — read from start to finish or jump to any topic.
How the Tamil Panchangam works, why New Year is April 14, the sidereal vs. tropical debate, and the 60-year Jovian cycle.
Every lunar mansion — the star, ruling planet, deity, symbol, festival connection, and how to find it in the night sky.
The five limbs of the Tamil almanac — Tithi, Vara, Nakshatra, Yoga, and Karanam — how each is calculated and what it means.
Did Thiruvalluvar encode Earth's 26,000-year axial wobble in 1,330 couplets? The evidence, science, and Tamil Tinai cosmic mapping.
The science behind the Tamil calendar — Earth's three motions, eclipses, Rahu and Ketu, and the Navagraha planets in detail.
Tamil astronomy in global context — from Babylonians to Greeks to Mayans, a 2,000-year historical timeline, and Aryabhata's revolution.
Every great Tamil festival is timed to a precise astronomical event — Karthigai Deepam when the full moon meets the Pleiades, Thai Pongal when the Sun enters Capricorn, Margazhi when Orion blazes overhead.
Astronomy inside the Tamil language itself — the 247 letters, Sirius as the Adi Orai, the Moon calendar of Shiva, the 18-year eclipse cycle in the 18 consonants, and Chidambaram temple aligned to the Galactic Centre.