Shadow divination and chaya jyotish for timing and predictions.
Astronomy, tradition and the moving shadow — explore what your shadow can actually tell you.
Enter your location and time to see your calculated shadow, the Sun's position and the Chaya Shastra interpretation.
Chaya Shastra is the Indian knowledge of shadows: the study of how light, the Sun and the observer produce a shadow, and how that shadow has been read, measured and interpreted across Indian astronomy, Jyotisha and folk culture.
The word Chaya (சாயை / साया) means "shadow" or "reflection." In classical Indian astronomy it refers to the shadow of a gnomon or the shadow of the Earth on the Moon. In Jyotisha it also names shadow planets — Rahu and Ketu — and the sensitive Upagraha points.
This module keeps these meanings separate: physical shadow calculations are shown as astronomy, traditional readings are labelled as belief, and Chaya Graha data is computed as Jyotisha.