Yantra at Jantar Mantar, Jaipur

(Posted in response to the Weekly Photo Challenge – Numbers)

This picture captures number etched on one of the solar instruments at Jantar Mantar, a UNESCO World heritage site in Jaipur. The marking is etched on a marble stone surface. The number etched is in Hindi script reading 13.  The reading on Rasivalaya Yantra is taken with help of shadow created by the  Sun. There are twelve such instruments each  representing the signs of zodiac and measures current latitude and longitude  of  the celestial body.

number marked on Rasivalaya Yantra at Jantar Mantar Jaipur. WPC-Numbers


Jantar Mantar Jaipur History

Between 1724 and 1727 AD, Maharajah Sawai jai Singh II, founder of Jaipur city built solar observatories in five different cities in North India. Out of all these five, the solar observatory in Jaipur is the most elaborate one. It’s being claimed that Jantar Mantar in Jaipur completed in 1734 AD. All instruments at Jantar Mantar are in working condition. They still work with the same precision.


What is Jantar Mantar? 

Jantar means instrument and Mantar means calculation, so it implies instrument of calculation.  Maharajah Jai Singh II was a great mathematician and had a keen interest in astronomy, which led to building of Jantar Mantar. Drawing from the knowledge of Persian, Arabic and Portuguese astronomy, these were one of it’s kind solar instruments built anywhere else.

If you are visiting Jaipur anytime, Jantar Mantar is a must visit. Check out here on my previous post on Jaipur guide. Click here to check out previous write up on Jantar Mantar

This post is part of  Weekly Photo Challenge – Numbers. Check out previous posts on Weekly Photo ChallengeClick here

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30 thoughts on “Yantra at Jantar Mantar, Jaipur

  1. I have seen Jantar Mantar and most of the exotic places of Rajasthan…having visited it twice. It is a state of historical pride, there is everything in one state…lakes and desert, palaces and forts, hills and temples…a true example of ‘incredible India!’

    Liked by 1 person

    1. This number is one of many marked as a reading, there is nothing special about 13. There is a scale – you can see marking on the surface. I’m happy that it brought back your memories. when did you visit jantar mantar?


  2. Looks like a marvelous place to visit for its history and for the technology that it is. Amazing to hear that it still works today, and I suppose it is constantly uncovering new discoveries of our solar system today. Brilliant 🙂

    Liked by 1 person

    1. Mabel, Surely it’s a marvel for the time when it was built and the fact that it’s accuracy has stood the test of time. While we can’t say that it’s uncovering new discoveries because it was merely used for calculations of planets, earth’s axis, time etc.
      Thanks for checking it out and for leaving a comment here. 🙂

      Liked by 1 person

    1. Yes, Somali! Jantar Mantar in Jaipur is much bigger and it’s maintained very well. In fact, all instruments still work…even after close to 300 years with same accuracy!

      Liked by 1 person

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