ptolemy

The Historic Discussion of Ptolemy’s Star Catalog

From the time of its writing in the 2nd century CE, Claudius Ptolemy‚Äôs Almagest stood at the forefront of mathematical…

4 months 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.

8 months ago

The Eridanus Constellation

Located in the southern skies is the Eridanus constellation, one of the original 48 catalogued by Ptolemy and one of…

4 years ago

The Equuleus Constellation

Welcome to another edition of Constellation Friday! Today, in honor of the late and great Tammy Plotner, we take a…

4 years ago

The Dorado Constellation

Located in the southern skies is the constellation of Dorado, one of the 88 modern constellations recognized by the IAU

6 years ago

The Delphinus Constellation

The northern constellation of Delphinus, located near the celestial equator, is one of the original 48 constellations compiled by Ptolemy

6 years ago

The Cygnus Constellation

Located in the northern hemisphere is the Cygnus constellation, one of the 48 constellations identified by Ptolemy and one of…

6 years ago

The Crater Constellation

Located in the southern hemisphere is the Crater constellation (aka. "the cup), one of the 88 modern constellations recognized by…

6 years ago

The Corvus Constellation

Located in the southern celestial hemisphere is the constellation Corvus (Latin for "the Raven"), one of the original 48 constellations…

6 years ago

The Corona Australis Constellation

In the southern skies lies the faint constellation known a Corona Australis (aka. the "Southern Crown"), one of the 88…

6 years ago