Scholars have been searching for Hipparchus’s catalogue for centuries. James Evans, a historian of astronomy at the University of Puget Sound in Tacoma, Washington, describes the find as “rare ...

Hipparchus was a Greek astronomer and mathematician who lived between about 190 and 120 B.C. Indirect evidence suggests that he made the first star catalog that used two coordinates to uniquely ...

Hipparchus’s star catalog is the oldest known attempt to document the positions of as many objects in the night sky as possible, and it was the first time that two coordinates were used to ...

The ancient Greek astronomer Hipparchus discovered the precession of the equinoxes, invented the stellar magnitude scale, discovered a nova, and made accurate planetary observations. He also ...

Hipparchus was also believed to be compiling a star catalog—perhaps the earliest known attempt to map the night sky to date—sometime between 162 and 127 BCE, based on references in historical ...

Hipparchus' star map, which was developed sometime between 162 and 127 BC, is the astronomer's attempt to record accurate positions of celestial objects with fixed coordinates.

Hipparchus knew only one inequality, the equation of the centre; but that is, perhaps, a slip, as it is elsewhere (p. 110) mentioned that Ptolemy discovered the evection. Histoire de l'Astronomie ...

Hipparchus (credit: FLICKR) This extract describes the Corona Borealis constellation's measurements as well as the stars contained within it and the measurements between them.