IAU-recognized sky catalog

88 Constellations

A fast reference for every modern constellation: meanings, observing seasons, notable sights, and clean pages that can be updated from one structured data file.

88 constellations 3 sky regions 13 ecliptic path entries

Atlas

Browse the modern sky

88 constellations shown

And Northern

Andromeda

Andromeda is a large northern constellation tied to the princess of Greek myth and home to the famous Andromeda Galaxy.

Meaning
Chained princess
Best season
Autumn
Ant Southern

Antlia

Antlia is a faint southern constellation introduced in the scientific-instrument tradition of the 18th century.

Meaning
Air pump
Best season
Spring
Aps Southern

Apus

Apus represents a bird of paradise and sits near the south celestial pole in a rich southern sky region.

Meaning
Bird of paradise
Best season
Winter
Aqr Equatorial

Aquarius

Aquarius is a sprawling zodiac constellation associated with water and notable meteor showers.

Meaning
Water bearer
Best season
Autumn
Aql Equatorial

Aquila

Aquila follows the Milky Way and is anchored by Altair, one of the bright stars of the Summer Triangle.

Meaning
Eagle
Best season
Summer
Ara Southern

Ara

Ara is a compact southern constellation near Scorpius and the Milky Way, traditionally pictured as an altar.

Meaning
Altar
Best season
Summer
Ari Northern

Aries

Aries is a small zodiac constellation representing the ram and marking an important historical point on the ecliptic.

Meaning
Ram
Best season
Winter
Aur Northern

Auriga

Auriga is a bright northern winter constellation known for Capella and a chain of open star clusters.

Meaning
Charioteer
Best season
Winter
Boo Northern

Boötes

Boötes is a northern constellation dominated by Arcturus, one of the brightest stars in the night sky.

Meaning
Herdsman
Best season
Spring
Cae Southern

Caelum

Caelum is a small, faint southern constellation named for an engraver's chisel.

Meaning
Chisel
Best season
Winter
Cam Northern

Camelopardalis

Camelopardalis is a large but faint northern constellation filling the space between Auriga, Perseus, and Ursa Major.

Meaning
Giraffe
Best season
Winter
Cnc Northern

Cancer

Cancer is a modest zodiac constellation best known for the Beehive Cluster, a bright naked-eye star cluster in dark skies.

Meaning
Crab
Best season
Spring
CVn Northern

Canes Venatici

Canes Venatici is a small northern constellation beneath the handle of the Big Dipper, rich in galaxies.

Meaning
Hunting dogs
Best season
Spring
CMa Southern

Canis Major

Canis Major contains Sirius, the brightest star in the night sky, and follows Orion through winter evenings.

Meaning
Great dog
Best season
Winter
CMi Northern

Canis Minor

Canis Minor is a compact constellation marked by Procyon, one of the nearest bright stars to the Sun.

Meaning
Little dog
Best season
Winter
Cap Southern

Capricornus

Capricornus is a faint zodiac constellation shaped like a broad triangle and traditionally pictured as a sea goat.

Meaning
Sea goat
Best season
Autumn
Car Southern

Carina

Carina is a brilliant southern constellation that once formed part of Argo Navis and contains Canopus and the Carina Nebula.

Meaning
Keel
Best season
Spring
Cas Northern

Cassiopeia

Cassiopeia is a northern circumpolar constellation with a distinctive W-shaped pattern and many Milky Way clusters.

Meaning
Queen
Best season
Autumn
Cen Southern

Centaurus

Centaurus is a large southern constellation containing Alpha Centauri and Omega Centauri.

Meaning
Centaur
Best season
Spring
Cep Northern

Cepheus

Cepheus is a northern circumpolar constellation shaped like a house and linked to the royal family of the Andromeda myth.

Meaning
King
Best season
Autumn
Cet Equatorial

Cetus

Cetus is a huge equatorial constellation representing a sea monster and containing the famous variable star Mira.

Meaning
Sea monster
Best season
Autumn
Cha Southern

Chamaeleon

Chamaeleon is a small southern constellation near the south celestial pole and a region of nearby star formation.

Meaning
Chameleon
Best season
Spring
Cir Southern

Circinus

Circinus is a small southern constellation near Alpha Centauri, named for a drawing compass.

Meaning
Compasses
Best season
Summer
Col Southern

Columba

Columba lies south of Canis Major and represents a dove in the winter southern sky.

Meaning
Dove
Best season
Winter
Com Northern

Coma Berenices

Coma Berenices is a faint northern constellation with a loose star cluster and access to the Virgo Cluster of galaxies.

Meaning
Berenice's hair
Best season
Spring
CrA Southern

Corona Australis

Corona Australis is a compact arc of stars near Sagittarius, representing the southern crown.

Meaning
Southern crown
Best season
Summer
CrB Northern

Corona Borealis

Corona Borealis forms a small semicircle of stars between Boötes and Hercules.

Meaning
Northern crown
Best season
Summer
Crv Southern

Corvus

Corvus is a small constellation with a recognizable quadrilateral of stars near Virgo and Hydra.

Meaning
Crow
Best season
Spring
Crt Southern

Crater

Crater is a faint constellation pictured as a cup resting on the back of Hydra.

Meaning
Cup
Best season
Spring
Cru Southern

Crux

Crux is the smallest constellation by area but one of the most recognizable in the southern sky.

Meaning
Southern cross
Best season
Spring
Cyg Northern

Cygnus

Cygnus flies along the Milky Way and is marked by Deneb, a star of the Summer Triangle.

Meaning
Swan
Best season
Summer
Del Northern

Delphinus

Delphinus is a small northern constellation with a compact diamond-shaped pattern.

Meaning
Dolphin
Best season
Summer
Dor Southern

Dorado

Dorado is a southern constellation notable for containing much of the Large Magellanic Cloud.

Meaning
Dolphinfish
Best season
Summer
Dra Northern

Draco

Draco winds around the north celestial pole between the Big and Little Dippers.

Meaning
Dragon
Best season
Summer
Equ Northern

Equuleus

Equuleus is one of the smallest constellations, a faint little horse near Pegasus.

Meaning
Little horse
Best season
Autumn
Eri Southern

Eridanus

Eridanus is a long river constellation stretching from Orion toward the far southern sky.

Meaning
River
Best season
Winter
For Southern

Fornax

Fornax is a faint southern constellation known for deep extragalactic fields and the Fornax Cluster.

Meaning
Furnace
Best season
Winter
Gem Northern

Gemini

Gemini is a bright zodiac constellation headed by Castor and Pollux, the mythic twins.

Meaning
Twins
Best season
Winter
Gru Southern

Grus

Grus is a southern autumn constellation representing a crane and containing several bright guide stars.

Meaning
Crane
Best season
Autumn
Her Northern

Hercules

Hercules is a large northern constellation best known for the Keystone asterism and the Great Globular Cluster.

Meaning
Hercules
Best season
Summer
Hor Southern

Horologium

Horologium is a faint southern constellation named for a clock.

Meaning
Clock
Best season
Winter
Hya Equatorial

Hydra

Hydra is the largest constellation in the sky, extending across a long stretch of spring nights.

Meaning
Water snake
Best season
Spring
Hyi Southern

Hydrus

Hydrus is a southern circumpolar constellation distinct from the much larger Hydra.

Meaning
Male water snake
Best season
Spring
Ind Southern

Indus

Indus is a faint southern constellation introduced during the era of southern sky mapping.

Meaning
Indian
Best season
Autumn
Lac Northern

Lacerta

Lacerta is a small northern constellation set in the Milky Way between Cygnus and Andromeda.

Meaning
Lizard
Best season
Autumn
Leo Northern

Leo

Leo is a prominent zodiac constellation with a recognizable sickle pattern and many spring galaxies.

Meaning
Lion
Best season
Spring
LMi Northern

Leo Minor

Leo Minor is a faint northern constellation between Leo and Ursa Major.

Meaning
Little lion
Best season
Spring
Lep Southern

Lepus

Lepus sits below Orion and represents the hare pursued through winter skies.

Meaning
Hare
Best season
Winter
Lib Southern

Libra

Libra is the zodiac constellation of the scales, lying between Virgo and Scorpius.

Meaning
Scales
Best season
Summer
Lup Southern

Lupus

Lupus is a southern constellation near Centaurus and Scorpius, representing a wolf.

Meaning
Wolf
Best season
Summer
Lyn Northern

Lynx

Lynx is a faint northern constellation whose name reflects the sharp eyesight needed to trace it.

Meaning
Lynx
Best season
Winter
Lyr Northern

Lyra

Lyra is a small but brilliant northern constellation centered on Vega.

Meaning
Lyre
Best season
Summer
Men Southern

Mensa

Mensa is a faint far-southern constellation named for Table Mountain and bordering the Magellanic Clouds.

Meaning
Table mountain
Best season
Summer
Mic Southern

Microscopium

Microscopium is a faint southern constellation from the scientific-instrument group.

Meaning
Microscope
Best season
Autumn
Mon Equatorial

Monoceros

Monoceros is a faint equatorial constellation threaded by the winter Milky Way between Orion and Canis Major.

Meaning
Unicorn
Best season
Winter
Mus Southern

Musca

Musca is a small southern constellation near Crux, representing a fly.

Meaning
Fly
Best season
Spring
Nor Southern

Norma

Norma is a small southern constellation in the Milky Way, named for a draftsman's square.

Meaning
Set square
Best season
Summer
Oct Southern

Octans

Octans contains the south celestial pole and is named for a navigational octant.

Meaning
Octant
Best season
Spring
Oph Equatorial

Ophiuchus

Ophiuchus straddles the celestial equator and the ecliptic, depicting a figure holding Serpens.

Meaning
Serpent bearer
Best season
Summer
Ori Equatorial

Orion

Orion is one of the most recognizable constellations, marked by a bright belt and a rich nebula region.

Meaning
Hunter
Best season
Winter
Pav Southern

Pavo

Pavo is a southern constellation introduced by early southern-sky chart makers and representing a peacock.

Meaning
Peacock
Best season
Autumn
Peg Northern

Pegasus

Pegasus is a large northern constellation known for the Great Square asterism.

Meaning
Winged horse
Best season
Autumn
Per Northern

Perseus

Perseus is a northern constellation rich in clusters and mythic associations with Andromeda and Medusa.

Meaning
Hero
Best season
Winter
Phe Southern

Phoenix

Phoenix is a southern constellation representing the mythic firebird.

Meaning
Phoenix
Best season
Spring
Pic Southern

Pictor

Pictor is a small southern constellation named for a painter's easel.

Meaning
Painter's easel
Best season
Winter
Psc Northern

Pisces

Pisces is a large zodiac constellation of two fishes connected by cords.

Meaning
Fishes
Best season
Autumn
PsA Southern

Piscis Austrinus

Piscis Austrinus is a southern constellation anchored by the bright star Fomalhaut.

Meaning
Southern fish
Best season
Autumn
Pup Southern

Puppis

Puppis is a rich Milky Way constellation that once formed part of Argo Navis.

Meaning
Stern
Best season
Winter
Pyx Southern

Pyxis

Pyxis represents the mariner's compass and lies near the old Argo Navis region.

Meaning
Compass
Best season
Spring
Ret Southern

Reticulum

Reticulum is a small southern constellation named for the reticle used in measuring instruments.

Meaning
Reticle
Best season
Winter
Sge Northern

Sagitta

Sagitta is a tiny northern constellation shaped like an arrow near Aquila and Vulpecula.

Meaning
Arrow
Best season
Summer
Sgr Southern

Sagittarius

Sagittarius points toward the center of the Milky Way and is packed with nebulae and star clusters.

Meaning
Archer
Best season
Summer
Sco Southern

Scorpius

Scorpius is a bright zodiac constellation with a curved tail and the red supergiant Antares.

Meaning
Scorpion
Best season
Summer
Scl Southern

Sculptor

Sculptor is a faint southern constellation known for nearby galaxies and deep-sky observing.

Meaning
Sculptor
Best season
Autumn
Sct Equatorial

Scutum

Scutum is a small constellation in the Milky Way, named for a shield.

Meaning
Shield
Best season
Summer
Ser Equatorial

Serpens

Serpens is the only modern constellation split into two separate sky regions, held by Ophiuchus.

Meaning
Serpent
Best season
Summer
Sex Equatorial

Sextans

Sextans is a faint equatorial constellation named for an astronomical sextant.

Meaning
Sextant
Best season
Spring
Tau Northern

Taurus

Taurus is a prominent zodiac constellation featuring Aldebaran, the Hyades, and the Pleiades.

Meaning
Bull
Best season
Winter
Tel Southern

Telescopium

Telescopium is a faint southern constellation named for the telescope.

Meaning
Telescope
Best season
Summer
Tri Northern

Triangulum

Triangulum is a small northern constellation known for the Triangulum Galaxy.

Meaning
Triangle
Best season
Autumn
TrA Southern

Triangulum Australe

Triangulum Australe is a bright small triangle in the southern sky.

Meaning
Southern triangle
Best season
Summer
Tuc Southern

Tucana

Tucana is a far-southern constellation containing the Small Magellanic Cloud and 47 Tucanae.

Meaning
Toucan
Best season
Spring
UMa Northern

Ursa Major

Ursa Major is a large northern constellation containing the Big Dipper asterism.

Meaning
Great bear
Best season
Spring
UMi Northern

Ursa Minor

Ursa Minor contains Polaris and circles the north celestial pole.

Meaning
Little bear
Best season
Summer
Vel Southern

Vela

Vela is a bright southern Milky Way constellation that once formed part of Argo Navis.

Meaning
Sails
Best season
Spring
Vir Equatorial

Virgo

Virgo is the largest zodiac constellation and a gateway to the Virgo Cluster of galaxies.

Meaning
Maiden
Best season
Spring
Vol Southern

Volans

Volans is a southern constellation representing a flying fish near Carina and Dorado.

Meaning
Flying fish
Best season
Summer
Vul Northern

Vulpecula

Vulpecula is a faint northern constellation in the Milky Way between Cygnus and Sagitta.

Meaning
Little fox
Best season
Summer