The Astronomical Observatories of Jai Singh c20.s1.24

Language: English

c20.s1.24

The Lords or Regents of the trigons are given on several astrolabes (p. 23). The origin of the arrangement is obscure, but, according to Geminus, the orientation is determined by the direction of the wind when the moon occupies one of the signs of the trigons, etc., etc.

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