Related: Star maps through the ages ... This find has debunked the idea that ancient astronomer Claudius Ptolemy copied Hipparchus in his own star catalogue. "Many people think that Hipparchus ...

The map was discovered by scholars studying ... it shows that Claudius Ptolemy composed his own, later star catalogue by combining several sources of observation. "More generally, this is a ...

A famous Greek astronomer and cartographer, Ptolemy's map of Ireland is incredibly accurate even though it was penned way back in 140AD. A map created by Greek astronomer and cartographer ...

And whereas Ptolemy based his coordinate system on the ecliptic, Hipparchus used the celestial equator, a system more common in modern star maps. The discovery “enriches our picture” of Hippar ...

Parts of his star map appear to have shown up in the Codex ... This would make Hipparchus' Catalogue more accurate than Ptolemy's much later Almagest astronomy handbook, though the researchers ...

Another well-known astronomer named Claudius Ptolemy who compiled his own star chart was thus attributed the authorship for the first physically existing map that he wrote in Alexandria ...

This method of locating the time of the star map is especially pleasing ... Tycho Brahe suggested that Ptolemy had stolen Hipparchus' work, before going on to accuse Ptolemy of fabricating ...