Almagest

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Geometric construction uised bi Hipparchus in his determination o the distances tae the sun an muin.

The Almagest is a 2nt-century mathematical an astronomical treatise on the apparent motions o the starns an planetary paths. Written in Greek bi Claudius Ptolemy, a Roman era scholar o Egyp, it is ane of the maist influential scienteefic texts o aw time, wi its geocentric model acceptit for mair nor twelve hundrit years frae its origin in Hellenistic Alexandria, in the medieval Byzantine an Islamic warlds, an in Wastren Europe through the Middle Ages an early Renaissance till Copernicus.