Ptolemy, in his famous astronomical treatise "Almagest", charted 48 constellations. These constellations are the ones that are still recognized today by the International Astronomical Union (IAU) as the original constellations of the Western tradition.

Here are the 48 constellations Ptolemy charted:

Northern Hemisphere:

* Andromeda

* Auriga

* Boötes

* Camelopardalis

* Cassiopeia

* Cepheus

* Cetus

* Coma Berenices

* Corona Borealis

* Cygnus

* Draco

* Equuleus

* Gemini

* Hercules

* Lacerta

* Leo Minor

* Lynx

* Lyra

* Perseus

* Pegasus

* Pisces

* Ursa Major

* Ursa Minor

Southern Hemisphere:

* Aquila

* Aries

* Cancer

* Capricornus

* Carina

* Centaurus

* Cetus (partially)

* Columba

* Corvus

* Crater

* Crux

* Eridanus

* Gemini (partially)

* Hydra

* Lepus

* Libra

* Lupus

* Orion

* Piscis Austrinus

* Sagittarius

* Scorpius

* Taurus

* Triangulum Australe

* Virgo

It's important to note that these constellations are not actually "real" groupings of stars. They are simply patterns that humans have perceived in the night sky, and their boundaries are arbitrary. However, they have become an important part of our cultural heritage and continue to be used for navigation and astronomy today.