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 copy of astronomer Hipparchus’ map of the stars was discovered underneath ... Scholars have long known about Hipparchus’ star catalog because other ancient texts made references about ...

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 ...

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 ...

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 ...

But that original catalog is lost to time, and we know of it only thanks to the writings of later scientists such as Ptolemy, who created his own star catalog around 150 A.D. and attributed an ...

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 ...

who created a star map noting the brightness of various stars more than two millennia ago. A few centuries later, another Greek astronomer, Ptolemy, attempted to classify stars using a six-tier ...