The name jantar is derived from "yantra" a Sanskrit word, meaning "instrument, machine", and mantar from "mantrana" also a Sanskrit word meaning "consult, calculate"). Therefore, … See more

Exactly when Raja Jai Singh began construction in Jaipur is unknown, but several instruments had been built by 1728, and the construction of the instruments in Jaipur … See more

The Vedas mention astronomical terms, measurement of time and calendar, but do not mention any astronomical instruments. The … See more

It was used as a filming location for the 2006 film The Fall as a maze.
Storm Thorgerson photographed the sundial for the cover of Shpongle's DVD, Live at the … See more

Jai Singh noticed that the Zij, which was used for determining the position of celestial objects, did not match the positions calculated on the table. He constructed five new … See more

The observatory consists of nineteen instruments for measuring time, predicting eclipses, tracking location of major stars as the Earth orbits around the Sun, ascertaining the declinations of planets, and determining the celestial altitudes and related … See more

The full extent of how Jai Singh's instruments were used for astronomical observation remains unclear. While the instruments themselves were impressive, there is limited … See more