Observatory in Jaipur, Rajasthan,India
|UNESCO World Heritage Site|
|Location||Jaipur, Rajasthan, India|
|Criteria||Cultural: (iii), (iv)|
|Inscription||2010 (34th session)|
|Area||1.8652 ha (4.609 acres)|
|Buffer zone||14.6664 ha (36.241 acres)|
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 monument was completed in 1734. It features the world's largest stone sundial, and is a UNESCO World Heritage site. It is located near City Palace and Hawa Mahal. The instruments allow the observation of astronomical positions with the naked eye. The observatory is an example of the Ptolemaic positional astronomy which was shared by many civilizations.
The monument features instruments operating in each of the three main classical celestial coordinate systems: the horizon-zenith local system, the equatorial system, and the ecliptic system. The kanmala Yantraprakara is one that works in two systems and allows transformation of the coordinates directly from one system to the other.
The monument was damaged in the 19th century. Early restoration work was undertaken under the supervision of Major Arthur Garrett, a keen amateur astronomer, during his appointment as Assistant State Engineer for the Jaipur District.
- "The Jantar Mantar, Jaipur - UNESCO World Heritage Centre". Whc.unesco.org. 31 July 2010. Retrieved 11 November 2012.
- The Jantar Mantar at Jaipur, India Portal to the Heritage of Astronomy, in partnership with UNESCO World Heritage Site
- Smithsonian. Timelines of Science. Penguin. p. 136. ISBN 978-1465414342.
- Yukio Ohashi (Editor: H Selin) (1997). Encyclopaedia of the History of Science, Technology, and Medicine. Springer. pp. 83–86. ISBN 978-0792340669.
- Sharma, VN (1991). "The Kapala Yantras of Sawai Jai Singh" (PDF). Indian Journal of History of Science. 26 (2): 209–216. Archived from the original (PDF) on 5 May 2015.
- Monthly Notices of the Royal Astronomical Society, Vol. 81, p. 257
Metropolis in Rajasthan, India
Palace in Jaipur
Sawai Mansingh Stadium
Jantar Mantar, Jaipur
District of Rajasthan in India
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