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The Jantar Mantar is a collection of nineteen architectural astronomical instruments built by the Rajput king Sawai jai singh II, the founder of Jaipur, Rajasthan. The Jantar Mantar is an equinoctial sundial, consisting of a gigantic triangular gnomon with the hypotenuse parallel to the Earth's axis. On either side of the gnomon is a quadrant of a circle, parallel to the plane of the equator. The instrument is intended to measure the time of day, correct to half a second and declination of the Sun and the other heavenly bodies. There were five Jantar Mantars in India, of which the largest is in Jaipur which features many instruments along with the world's largest stone sundial.[1] At present only four Jantar Mantar exist, the Jantar Mantar at Mathura was torn down just before Revolt of 1857. The Vrihat Samrat yantra is a sundial that can give the local time to an accuracy of 2 seconds. It is a UNESCO World Heritage Site.
@ 17 Sep, 2020
Well maintained place. Information regarding all the structures is presented besides the structure. For more information one can hire guides available at the place. There is a well maintained washroom and a shop for light snacks in the premises.
@ 23 Jun, 2020
So many celestial tracking tools. You have structures that monitor time, dates, constellations with such accuracy... would be fun to visit after dark if possible. You have to go past the entrance to the ticket counter, fee for me was 200 rupees. Allow yourself at least an hour, but if you are really into these things, could easily be half to full day. Not much shade inside, so dress appropriately.
@ 06 Sep, 2020
Jantar mantar is located near City Palace and Hawa Mahal of Jaipur. The observatory is collection of 19 geometric devices for measuring time and space for astronomy. It is also used for observing the orbits around the Sun. While the previous observatory like King Ulugh Beg was build from metal but it was less accurate and not use for long period. So Sawai Jai Singh II decided to build the observatory instruments with stone and marble because stone life is longer than metal and does not wear and tear easily. The instruments allow the visitors to observe the astronomical positions with the naked eye. Some of the instruments are built from bronze.
@ 10 Sep, 2020
Best observatory and I was really amazing that clocks here are so old but still working accurately... it's an amazing experience.. If you have kids you should bring them here...
@ 30 Aug, 2020
Built 300 years ago and accurate to the second to the second, eye opener place fir flat earthers.