Nobody before Hipparchus had ever attempted a star map that spanned the entire visible sky, and there was also no knowledge of Earth's precession until he figured it out. As it rotates, Earth will ...

Art & Tech The World’s Oldest Map of the Stars, Lost for Thousands of Years, Has Been Found in the Pages of a Medieval Parchment The ancient Greek astronomer Hipparchus catalogued the ...

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, who's also known as the father of trigonometry, is often considered the greatest astronomer of ancient Greece. Parts of his star map appear to have shown up in the Codex Climaci ...

A copy of astronomer Hipparchus’ map of the stars was discovered underneath the Syriac text of John Climacus’ “Ladder of Divine Ascent,” a treatise written in around 600 CE, according to a ...

Editor's note: Updated at 10 a.m. EDT to clarify that the Hipparchus' star map is not the oldest star map on record, but the oldest complete star map on record.

The star catalog was made by ancient Greek astronomer Hipparchus around 162 and 127 BCE, 1,400 years before the telescope. By Laura Baisas Published Oct 20, 2022 1:00 PM EDT Get the Popular ...

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 ...

Before this discovery of Hipparchus’ notes, the earliest known star catalog on record was astronomer Claudius Ptolemy ’s Almagest, written in the second century C.E.—some 300 years later.

The library of St Catherine’s Monastery on the Sinai Peninsula in Egypt yielded a palimpsest containing stellar coordinates by Hipparchus. Credit: Amanda Ahn/Alamy A medieval parchment from a ...

The Greek astronomer Hipparchus is often called the "father of astronomy." He's credited with discovering the Earth's precession (how it wobbles on its axis) and calculating the motions of the Sun ...