The list below shows the International Astronomical Union (IAU) conventions for constellation names. Given for each constellation is the Latin name, nominative and genitive, as well as the approved three-letter abbreviation. The abbreviation is what is generally used in AAVSO applications.
AAVSO finder charts for some of these constellations may be found here.
| Nominative | Genitive | Abbreviation | |
|---|---|---|---|
| Andromeda | Andromedae | And | |
| Antlia | Antliae | Ant | |
| Apus | Apodis | Aps | |
| Aquarius | Aquarii | Aqr | |
| Aquila | Aquilae | Aql | |
| Ara | Arae | Ara | |
| Aries | Arietis | Ari | |
| Auriga | Aurigae | Aur | |
| Bootes | Bootis | Boo | |
| Caelum | Caeli | Cae | |
| Camelopardalis | Camelopardalis | Cam | |
| Cancer | Cancri | Cnc | |
| Canes Venatici | Canum Venaticorum | CVn | |
| Canis Major | Canis Majoris | CMa | |
| Canis Minor | Canis Minoris | CMi | |
| Capricornus | Capricorni | Cap | |
| Carina | Carinae | Car | |
| Cassiopeia | Cassiopeiae | Cas | |
| Centaurus | Centauri | Cen | |
| Cepheus | Cephei | Cep | |
| Cetus | Ceti | Cet | |
| Chamaeleon | Chamaeleontis | Cha | |
| Circinus | Circini | Cir | |
| Columba | Columbae | Col | |
| Coma Berenices | Comae Berenices | Com | |
| Corona Australis | Coronae Australis | CrA | |
| Corona Borealis | Coronae Borealis | CrB | |
| Corvus | Corvi | Crv | |
| Crater | Crateris | Crt | |
| Crux | Crucis | Cru | |
| Cygnus | Cygni | Cyg | |
| Delphinus | Delphini | Del | |
| Dorado | Doradus | Dor | |
| Draco | Draconis | Dra | |
| Equuleus | Equulei | Equ | |
| Eridanus | Eridani | Eri | |
| Fornax | Fornacis | For | |
| Gemini | Geminorum | Gem | |
| Grus | Gruis | Gru | |
| Hercules | Herculis | Her | |
| Horologium | Horologii | Hor | |
| Hydra | Hydrae | Hya | |
| Hydrus | Hydri | Hyi | |
| Indus | Indi | Ind | |
| Lacerta | Lacertae | Lac | |
| Leo | Leonis | Leo | |
| Leo Minor | Leonis Minoris | LMi | |
| Lepus | Leporis | Lep | |
| Libra | Librae | Lib | |
| Lupus | Lupi | Lup | |
| Lynx | Lyncis | Lyn | |
| Lyra | Lyrae | Lyr | |
| Mensa | Mensae | Men | |
| Microscopium | Microscopii | Mic | |
| Monoceros | Monocerotis | Mon | |
| Musca | Muscae | Mus | |
| Norma | Normae | Nor | |
| Octans | Octantis | Oct | |
| Ophiuchus | Ophiuchi | Oph | |
| Orion | Orionis | Ori | |
| Pavo | Pavonis | Pav | |
| Pegasus | Pegasi | Peg | |
| Perseus | Persei | Per | |
| Phoenix | Phoenicis | Phe | |
| Pictor | Pictoris | Pic | |
| Pisces | Piscium | Psc | |
| Piscis Austrinus | Piscis Austrini | PsA | |
| Puppis | Puppis | Pup | |
| Pyxis | Pyxidis | Pyx | |
| Reticulum | Reticuli | Ret | |
| Sagitta | Sagittae | Sge | |
| Sagittarius | Sagittarii | Sgr | |
| Scorpius | Scorpii | Sco | |
| Sculptor | Sculptoris | Scl | |
| Scutum | Scuti | Sct | |
| Serpens | Serpentis | Ser | |
| Sextans | Sextantis | Sex | |
| Taurus | Tauri | Tau | |
| Telescopium | Telescopii | Tel | |
| Triangulum | Trianguli | Tri | |
| Triangulum Australe | Trianguli Australis | TrA | |
| Tucana | Tucanae | Tuc | |
| Ursa Major | Ursae Majoris | UMa | |
| Ursa Minor | Ursae Minoris | UMi | |
| Vela | Velorum | Vel | |
| Virgo | Virginis | Vir | |
| Volans | Volantis | Vol | |
| Vulpecula | Vulpeculae | Vul |