Hipparchus
The Historic Discussion of Ptolemy’s Star Catalog
From the time of its writing in the 2nd century CE, Claudius Ptolemy’s Almagest stood at the forefront of mathematical…
2 years ago
Scientists Find an Ancient Stellar Catalog Written by Hipparcus Hidden in a Medieval Tome
Spectral imaging reveals the Hipparchus astronomical catalog was much more precise than we thought.
2 years ago
Do Stars Move? Tracking Their Movements Across the Sky
The stars look static in the sky, but are they moving? How fast, and how do we know? What events…
8 years ago