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India observatory Jantar Mantar 2

Jai Prakash Yantra








Representation of half celestial sphere rim represents horizon for finding all the positions of the heavenly bodies.

It consists of marble slabs with an inverted image of the sky.

This instrument allows the users to move inside it with the given large scale for accuracy.

Therefore, It also measures the altitudes, azimuths, hour angles, as well as declinations.

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