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 o the maist influential scienteefic texts o aw time, wi its geocentric model acceptit for mair nor twal hundrit years frae its origin in Hellenistic Alexandria, in the medieval Byzantine an Islamic warlds, an in Wastren Europe throu the Middle Ages an early Renaissance till Copernicus.