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…

10 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.

1 year ago

The Eridanus Constellation

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

5 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…

5 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