With a rebuttal by the discoverers in 2025
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event

Figure timeline
Hipparchus was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry, but is most famous for his incidental discovery of the precession of the equinoxes. Hipparchus was born in Nicaea, Bithynia, and probably died on the island of Rhodes, Greece. He is known to have been a working astronomer between 162 and 127 BC.
Text from Wikipedia, available under CC BY-SA 4.0.
science · Greek astronomer, geographer and mathematician (c. 190 – c. 120 BCE) · astronomer · mathematician · geographer · also Hipparchus, Hipparchus of Nicaea, Hipparchus of Rhodes
Born 190 BC · Died 120 BC · Q159905
13 published statements · 0 followers
See & hear
13 photos
Media from Wikimedia Commons, hotlinked at the source under its own licence — see each file for author and terms.
Live now
Pulling headlines from trusted outlets — this usually takes a few seconds
Checking the wires…
Feed scan
These are live links, not archived citations — they only join the timeline once a collect run verifies and archives them.
Live pulse
Most recent outstanding titles, awards, and quotes
With a rebuttal by the discoverers in 2025
Text from Wikipedia, available under CC BY-SA 4.0.
SpaceNews: Discovery Of Extracts From A Lost Astronomical Catalogue By Ancient Greek Astronomer Hipparchus
Business Insider: Scholars found a long-lost star map from ancient Greek astronomer Hipparchus hidden beneath layers of medieval Christian text
Ars Technica: Part of lost star catalog of Hipparchus found lurking under medieval codex
Phys.org: Hipparchus's map of the stars may finally have been found
It was announced that a part of it was discovered in a medieval parchment manuscript, Codex Climaci Rescriptus, from Saint Catherine's Monastery in the Sinai Peninsula, Egypt as hidden text (palimpsest)
Text from Wikipedia, available under CC BY-SA 4.0.
Astronomy: Hipparchus’s sky catalog found
When it was again proposed (as in 1898) that the data on the celestial globe of Hipparchus or in his star catalog may have been preserved in the only surviving large ancient celestial globe which depicts the constellatio
Text from Wikipedia, available under CC BY-SA 4.0.
Awarded International Space Hall of Fame (2004).
Text from Wikipedia, available under CC BY-SA 4.0.
Published “The Geographical Fragments of Hipparchus. With an Introduction and Commentary” in The Classical World.
Published “ASTRONOMY AND LETTERS.” in The Lancet.
Who placed the magnitudes on a logarithmic scale, making magnitude 1 stars 100 times brighter than magnitude 6 stars, thus each magnitude is 5√100 or 2
Text from Wikipedia, available under CC BY-SA 4.0.
Published “Subbatical and Jubilee Years of the jews” in Notes and Queries.
Connections