Jaipur Observatory – Jantar Mantar

Part of the City Palace complex, Jantar Mantar, the Sawai Jai Singh’s astronomic observatory is now a World Heritage site. Himself a keen astronomer, he invented his own gigantic instruments, fashioned out of marble and stone, and using these made amazing accurate observations about the movement of the sunm the moon, the stars and the celestal bodies.

One of the most striking intruments is his great Samrat Yantra, sun dial used to measure local and meridian pass time and various observations related to celestal bodies. He invented 15 different instruments, specially the Ram Yantra used to calculate the altitude and azimuth of celestal bodies.