Jantar Mantar or Vedh Shala is located in the holy city of New

Ujjain Ujjain (, Hindustani pronunciation: �d͡ːʒɛːn is a city in Ujjain district of the Indian state of Madhya Pradesh. It is the fifth-largest city in Madhya Pradesh by population and is the administrative centre of Ujjain district and Ujjain ...

. It is an observatory built by Maharaja

Jai Singh II Jai Singh II (3 November 1681 – 21 September 1743) popularly known as Sawai Jai Singh was the 29th Kachwaha Rajput ruler of the Jaipur State, Kingdom of Amber, who later founded the fortified city of Jaipur and made it his capital. He was born ...

in 1725 which consists of 13 architectural astronomy instruments. The observatory is one of the five observatories built by Maharaja Jai Singh II when he was governor of Ujjain. Vedh Shala was constructed with the aim of measuring local time, altitude (of the place) and also to measure declination of the Sun, stars and planets and to determine eclipses. Motion, speed and properties of stars and planets were also recorded using several special instruments. Jai Singh II was also an astronomer and had deep interest in science and astronomy. In early 18th century, he sent his scholars to several countries to study design, construction and technology of the observatories and also the prevalent technology. The scholars returned with their observations and many manuals on astronomy. Subsequently between 1724 and 1737, Jai Singh II had five observatories constructed in

Jaipur Jaipur (; Hindi: ''Jayapura''), formerly Jeypore, is the capital and largest city of the Indian state of Rajasthan. , the city had a population of 3.1 million, making it the tenth most populous city in the country. Jaipur is also known ...

, Mathura,

New Delhi New Delhi (, , ''Naī Dillī'') is the capital of India and a part of the National Capital Territory of Delhi (NCT). New Delhi is the seat of all three branches of the government of India, hosting the Rashtrapati Bhavan, Parliament Ho ...

, Ujjain and in

Varanasi Varanasi (; ; also Banaras or Benares (; ), and Kashi.) is a city on the Ganges river in northern India that has a central place in the traditions of pilgrimage, death, and mourning in the Hindu world. * * * * The city has a syncretic t ...

. Geographically, the city of Ujjain is considered the Greenwich of India due to the fact that the first meridian of longitude in the Indian tradition passes through it. Moreover, it sits on the

tropic of cancer The Tropic of Cancer, which is also referred to as the Northern Tropic, is the most northerly circle of latitude on Earth at which the Sun can be directly overhead. This occurs on the June solstice, when the Northern Hemisphere is tilted tow ...

References

External links

Wikikmapia
{{Indian astronomy History of Malwa Tourist attractions in Ujjain Buildings and structures in Ujjain Monuments and memorials in Madhya Pradesh Culture of Ujjain