The International Astronomical Union (IAU) officially recognizes 88 constellations, each defined by precise celestial boundaries. This catalogue blends ancient mythological symbols with modern discoveries, offering a complete map of the night sky. Below is a concise overview of each constellation, highlighting its mythic origin, notable stars, and unique characteristics. The list also notes which 24 constellations are observable only from the Northern Hemisphere.
A princess of Greek myth, Andromeda is famed for her tragic beauty. Its stars form a distinctive ‘M’ shape visible in winter.
Named after an air pump, Antlia is a modern southern constellation that appears faintly in the sky near Centaurus.
Apus, meaning ‘birdless’, commemorates the bird of paradise. It lies in the southern hemisphere and contains no bright stars.
The water bearer, Aquarius marks the edge of the Zodiac and is recognizable by its curved bowl‑shaped cluster of stars.
Representing an eagle associated with Zeus, Aquila hosts the bright star Altair and the northern celestial pole region.
The altar, Ara is a faint constellation near the southern celestial pole, symbolizing sacred offerings.
The ram of Greek lore, Aries is a Zodiac sign and contains the bright star Hamal.
Auriga, the charioteer, is home to the bright star Capella and is easily spotted in the winter sky.
Boötes, the herdsman, carries the bright star Arcturus and is a prominent winter constellation.
Caelum, a faint constellation representing a chisel, lies near the southern celestial equator.
Named after the giraffe, Camelopardalis is a faint constellation in the northern sky with no bright stars.
The crab of Greek mythology, Cancer is a Zodiac sign noted for its triangular star pattern.
Representing two hunting dogs, Canes Venatici is a faint constellation near Boötes, known for the cometary dust cloud it contains.
The great dog, Canis Major is famous for hosting Sirius, the brightest star visible from Earth.
The small dog, Canis Minor contains Procyon and sits near Orion’s belt.
Capricornus, the sea‑goat, is a Zodiac sign and features the bright star Deneb Algedi.
Part of the Southern Cross, Carina depicts the keel of the ship Argo and is a prominent southern constellation.
The queen’s throne, Cassiopeia forms a distinctive ‘W’ or ‘M’ shape and is easily spotted in the winter northern sky.
A large southern constellation portraying a centaur, Centaurus hosts the bright star Alpha Centauri.
The king of Ethiopia, Cepheus is a northern constellation noted for its small but distinct shape.
The sea monster, Cetus lies between Orion and Pegasus, containing the bright star Kaus Australis.
Named after the reptile, Chamaeleon is a faint southern constellation best viewed from mid‑latitudes.
The compass, Circinus is a modern constellation situated near Sagittarius.
Representing a dove, Columba is a faint northern constellation just below Pegasus.
Coma Berenices, meaning Berenice’s hair, commemorates an Egyptian queen and contains the bright star Beta Comae Berenices.
The southern crown, Corona Australis is a thin, curved band of stars near the southern celestial pole.
The northern crown, Corona Borealis is a bright, rounded arc of stars in the northern sky.
The crow, Corvus is a small constellation with the bright star Dubhe, part of the Big Dipper’s handle.
The cup, Crater is a tiny constellation in the southern sky, often paired with the Southern Cross.
The Southern Cross is a key navigational aid in the southern hemisphere, its four bright stars forming a distinctive cross.
Cygnus, the swan, stretches across the summer sky and hosts the bright star Deneb.
Delphinus, the dolphin, is a small, faint constellation near Pegasus.
Representing a swordfish, Dorado is a southern constellation near the celestial equator.
The dragon, Draco encircles the north celestial pole and contains the bright star Thuban.
The small horse, Equuleus sits just north of Pegasus and is notable for its white star Vega’s neighbor.
Eridanus, the river, stretches across the sky and includes the bright star Achernar at its southern tip.
The furnace, Fornax is a modern southern constellation known for the Fornax Cluster of galaxies.
Gemini, the twins Castor and Pollux, is a prominent Zodiac sign featuring two bright stars.
The crane, Grus is a faint southern constellation best seen from mid‑latitude southern sites.
Hercules, the legendary hero, is a large northern constellation containing the bright star Vega.
The clock, Horologium is a modern southern constellation situated near the southern pole.
Hydra, the largest constellation, depicts a serpent stretching across the sky and contains the bright star Alphard.
Hydrus, the southern water snake, lies just south of Hydra and is visible only from the southern hemisphere.
Indus, representing an indigenous person, is a modern southern constellation near the celestial equator.
Lacerta, the lizard, is a faint northern constellation near Leo.
Leo, the lion, is a Zodiac sign notable for its bright star Regulus.
Leo Minor is a small, faint constellation situated between Orion and Leo.
The hare, Lepus sits just south of Orion and contains the bright star Antares.
Libra, the scales, is a Zodiac sign and is known for its balanced pair of stars.
Lupus, the wolf, lies in the southern sky and contains the bright star Alpha Lupus.
Lynx is a faint northern constellation near Ursa Major, named after a cat.
Lyra, the lyre, is associated with Orpheus and hosts the bright star Vega.
Mensa, meaning Table Mountain, is a modern southern constellation with a cluster of faint stars.
Microscopium is a small, modern constellation near Lupus, symbolizing the scientific instrument.
Monoceros, the unicorn, is a faint northern constellation located between Orion and Taurus.
Musca, the fly, is a tiny southern constellation best seen from the southern hemisphere.
Norma, the set square, is a modern southern constellation found near Ara.
Octans, the octant, contains the South Celestial Pole and is a key reference point for southern sky navigation.
Ophiuchus, the serpent bearer, is sometimes considered the 13th Zodiac sign and lies between Scorpius and Serpens.
Orion, the hunter, is one of the most recognizable constellations, featuring the famous belt and the bright stars Betelgeuse and Rigel.
Pavo, the peacock, is a southern constellation known for its distinctive feathered star pattern.
Pegasus, the winged horse, is a prominent summer constellation with the bright star Enif.
Perseus, the hero, contains the bright star Algol and lies adjacent to Pegasus.
Phoenix, the mythical bird, is a faint southern constellation with a circular arrangement of stars.
Pictor, the easel, is a modern southern constellation situated near Lupus.
Pisces, the fish, is a Zodiac sign and contains the bright stars Alpha and Beta Piscium.
Piscis Austrinus, the southern fish, is a faint constellation near Ara.
Puppis represents the stern of the ship Argo and lies in the southern sky.
Pyxis, the mariner’s compass, is a small, modern constellation near Crux.
Reticulum, the net, is a modern southern constellation near the south celestial pole.
Sagitta, the arrow, is a faint constellation located between Aquila and Corvus.
Sagittarius, the centaur archer, is a prominent Zodiac sign and contains the bright star Kaus Australis.
Scorpius, the scorpion, is a southern constellation known for its bright star Antares and the heart of the constellation.
Sculptor, a modern constellation, is situated near the southern celestial pole and contains the Sculptor Cluster.
Scutum, the shield, is a faint southern constellation known for its bright star gamma Scuti.
Serpens is split into Serpens Caput and Serpens Cauda, representing the serpent’s head and tail.
Sextans, the sextant, is a modern northern constellation known for its bright star Alpha Sextantis.
Taurus, the bull, is a Zodiac sign featuring the bright stars Aldebaran and the Pleiades cluster.
Telescopium, the telescope, is a small southern constellation near Hydrus.
Triangulum is a small northern constellation known for its bright star Scheat.
Triangulum Australe, the Southern Triangle, is a tiny southern constellation near the South Celestial Pole.
Tucana, the toucan, is a bright southern constellation notable for its two bright stars in the ‘bill’ shape.
Ursa Major, the Great Bear, contains the iconic Big Dipper asterism and is a staple of northern sky navigation.
Ursa Minor, the Little Bear, hosts Polaris, the North Star, and is visible throughout the year from the northern hemisphere.
Vela, the sails, completes the ship Argo and is a southern constellation with bright stars like Mimosa.
Virgo, the maiden, is a Zodiac sign that includes the bright star Spica.
Volans, the flying fish, is a small southern constellation located near Hydrus.
Vulpecula, the little fox, is a faint northern constellation situated near Ursa Major.
From this exhaustive list, you can identify which constellations are accessible only from the Northern Hemisphere, helping you plan stargazing sessions in your region.
