nadivalaya - an astronomical instrument at ancient observatory, jantar mantar, jaipur, rajasthan, india

ancient angular architecture astronomical astronomy celestial details dial equinoctial equitorial geomerty geometrical giant gnomon group heritage huge india instrument instruments jaipur jantar large latitude mantar measurement monument nadi nadivalaya nasonry north observatory planetary planets pole poles position positional rajasthan shadow solar south stellar stone structure sun sundial system time valaya wall yantra zodiac