The Astronomical Observatories of Jai Singh c11.s2.t1.41

Language: English

c11.s2.t1.41

“The instruments which follow have similar graduations: there are three very large astrolabes cast in copper, suspended by iron rings; a circle also of cast copper, fitted with a rule (or alhidade), and elevated at the height of the pole, suitable for determining the declination of the sun—for, when you turn this instrument towards the sun, it will indicate the declination on the ground.

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