There are 88 constellations in modern astronomy that were officially defined in 1922 by the International Astronomical Union (IAU). Most of the northern constellations in use today were based on those listed thousands of years ago by the ancient Babylonians and later the Greeks (Ptolemy). Of course, much of the southern sky remained unmapped until European explorers proposed new constellations for that region, as well as ones to fill gaps between traditional constellations. Inevitably, some proposed constellations didn't make the cut. These include Quadrans (which is now part of Boötes and Draco) and Argo Navis. The latter ancient constellation was so big that it was broken up into 4 smaller constellations, namely Carina, Puppis, Vela and Pyxis.
The Modern 88 Constellations
- Andromeda...............Andromeda Constellation Guide
- Antlia
- Apus
- Aquarius
- Aquila
- Ara
- Aries........................Aries Constellation Guide
- Auriga
- Boötes
- Caelum
- Camelopardalis
- Cancer
- Canes Venatici
- Canis Major
- Canis Minor
- Capricornus
- Carina
- Cassiopeia.................Cassiopeia Constellation Guide
- Centaurus
- Cepheus
- Cetus
- Chamaeleon
- Circinus
- Columba
- Coma Berenices
- Corona Austrina
- Corona Borealis
- Corvus
- Crater
- Crux..........................Crux Constellation Guide
- Cygnus
- Delphinus
- Dorado
- Draco
- Equuleus
- Eridanus
- Fornax
- Gemini.......................Gemini Constellation Guide
- Grus
- Hercules....................Hercules Constellation Guide
- Horologium
- Hydra
- Hydrus
- Indus
- Lacerta
- Leo
- Leo Minor
- Lepus
- Libra
- Lupus
- Lynx
- Lyra
- Mensa
- Microscopium
- Monoceros
- Musca
- Norma
- Octans
- Ophiuchus
- Orion........................Orion Constellation Guide
- Pavo
- Pegasus
- Perseus
- Phoenix
- Pictor
- Pisces
- Piscis Austrinus
- Puppis
- Pyxis
- Reticulum
- Sagitta
- Sagittarius
- Scorpius
- Sculptor
- Scutum
- Serpens
- Sextans
- Taurus
- Telescopium
- Triangulum
- Triangulum Australe
- Tucana
- Ursa Major...................Ursa Major Constellation Guide
- Ursa Minor...................Ursa Minor Constellation Guide
- Vela
- Virgo
- Volans
- Vulpecula....................Vulpecula Constellation Guide