The following list contains the 88 official constellations as designated
by the International Astronomical Union. Select any constellation
to see its image. Information about each constellation is taken from
Richard Hinckley Allen's Star Names: Their Lore and Meaning
and Julius Staal's The New Patterns in the Sky.
Along with Perseus, Cassiopeia, Cepheus, and Pegasus, Andromeda
is involved in one of the oldest stories in history and is one of
the most ancient constellations. Andromeda was an ancient princess
who was saved from being sacrificed to the sea monster Cetus by
the hero Perseus. Cassiopeia and Cepheus are her parents, who are
forced to sacrifice their daughter as punishment for insulting the
ancient gods. Within the constellation of Andromeda is located M31,
the Andromeda Galaxy. M31 is a spiral galaxy similar to our own
Milky Way, and is the most distant object a person can observe without
the use of a telescope. The constellation is located to the east
of Pegasus and just below Cassiopeia.
This constellation was created between 1750 and 1754 by the French
astronomer Nicholas Louis de La Caille. Originally called Antlia
Pneumatica, it was one of several constellations created to represent
newly invented machines of the era.
This constellation first appeared on the star maps of astronomer
Johann Bayer in 1603. It is a constellation of the Southern Hemisphere,
created to honor the new types of birds discovered by European explorers
in the Americas. It is sometimes also called Apus Indica.
One of the twelve ancient constellations that make up the zodiac,
Aquarius is located in a part of the sky known as "the Water"
that is full of water-related constellations. Aquarius represents
the youthful shepherd boy Ganymede who was abducted by the Greek
god Zeus and brought to Olympus to serve as cupbearer to the gods.
His job was to keep the wine cups of the gods full. The constellation
itself is one of the most difficult to find. None of the stars are
particularly bright. Aquarius can be found underneath the Great
Square of Pegasus.
An ancient constellation whose bright star Altair marks one third
of the asterism known as the "Summer Triangle". Aquila
is the eagle that was the symbol of the ancient god Zeus. Aquila
was known to carry Zeus's thunderbolts, and was sent to bring the
youth Ganymede to Olympus to serve as cupbearer to the gods (see
Aquarius). The stars of Aquila are very bright and easy to spot
throughout the summer and well into the fall.
This constellation has been recognized since the time of the ancient
Greeks and Romans. It represents the altar created by the Olympian
gods after they defeated the Titans. It can be found below Scorpius,
located near the constellations of Lupus and Centaraus. Because
of its southerly position it is nearly impossible to see from most
of the United States.
An ancient constellation of the zodiac. Aries is one of the smallest
and most inconspicuous of the zodiac constellations. Aries represents
the golden ram whose fleece Jason and Argonauts sought. The constellation
is comprised of only a few stars, with Hamal being the brightest
and easiest to locate. Aries can be found west of Taurus and southeast
of Pegasus.
One of the earliest constellations to be recognized. Auriga may
represent the lame Greek god Hephaestus or his son, each one is
credited with inventing the chariot. The constellation is also associated
with shepherds. The star Capella (the sixth brightest in the night
sky) means "she-goat" and the three stars immediately
below it are known as "the kids". Auriga is easily spotted
just above the horns of Taurus, the bull. The two constellations
share the star Alnath.
Bootes is an ancient constellation with many stories attached to
it. The word Bootes means "ox driver" and the constellation
is said to be a farmer using the the plough (the Big Dipper) to
plough his fields. In other stories Bootes is known as the bear-driver
as he is following the two bears of Ursa Major and Ursa Minor around
the sky. Bootes is easily found by following the arc of the handle
of the Big Dipper to the bright star Arcturus (the third brightest
star in the night sky).
Created between 1750 and 1754 by the French astronomer Nicolas
Louis de La Caille. It is meant to represent the tool used by engravers.
Visible primarily from the Southern Hemisphere, it rises just above
the horizon for viewers in the southern United States.
Created in 1614 by the German astronomer Jakob Bartsch. It was
created to fill a region of the sky devoid of constellations. It
is surrounded by the Ursa Major, Auriga, Perseus, Ursa Minor, and
others. It contains no bright stars, and is a challenge to find
from any area that does not have a totally darkened sky.
An extremely ancient yet difficult to spot constellation. Cancer
represents the crab that Hera sent to distract the hero Hercules
as he was fighting the sea serpent Hydra. The constellation of Cancer
contains no bright stars so it is one of the hardest of the zodiac
constellations to find. Look for the constellation just to the west
of Leo. Within Cancer can be found M44, also known as the Beehive
Cluster, or the Praesepe. This is an open cluster of stars, that
under a dark sky looks like a small, fuzzy cloud.
Created in 1687 by the German-Polish astronomer Johannes Hevelius.
This constellation is said to represent the two hunting dogs of
the nearby constellation, Bootes. The dogs are named Chara and Asterion.
Asterion is another name for the star Cor Caroli.
A very ancient constellation, Canis Major is the larger of the
the two hunting dogs used by Orion. Within the constellation can
be found the brightest star in the night sky Sirius, also known
as the "Dog Star". The name Sirius is derived from the
Greek word seirios which means "scorcher". It was
thought that during the hot months of summer when this star is above
the horizon during the day time its heat was added to the sun. This
is the origin of the term "the dog days of summer". Canis
Major can be easily found by following a path leading east from
the belt stars of Orion.
A very ancient constellation, Canis Minor is the smaller of the
the two hunting dogs used by Orion. The constellation is one of
the smallest in the sky and is composed primarily by only two bright
stars. Canis Minor can be found by looking above the constellation
of Canis Major. The star Procyon, along with Sirius in Canis Major
and Betelgeuse in Orion create the asterism known as the "Winter
Triangle".
Capricornus is one of the ancient constellations of the zodiac.
Although it is a fairly large constellation, its stars are dim and
it is difficult to see unless the sky is completely dark. Capricornus
represents the Greek god Pan who was often represented as partially
being a goat. In order to escape the monster Typhon, Pan dived into
a river and attempted to change himself into a fish. Only part of
him transformed so he had the head and body of a goat and the rear
section of a fish. Zeus being amused by this put the image among
the stars as the constellation Capricornus. The constellation is
located between Aquarius and Sagittarius, southeast of the Summer
Triangle.
Carina is one part of the constellation formerly known as Argo
Navis (along with Vela and Puppis). Argo Navis was the ship used
by Jason and the Argonauts as they sought to recover the Golden
Fleece. Carina represents the keel of the ship. The constellation
is difficult to see from most of the United States. Only those living
south of 38 degrees latitude will be able to spot the brightest
star of the constellation, Canopus.
An ancient constellation that is part of the story of Perseus and
Andromeda. Cassiopeia was the mother of Andromeda, and because of
her boasting that she was more beautiful than the sea nymphs, the
Nereids, she was forced by the god Poseidon to sacrifice her daughter
to the sea monster Cetus. Also as punishment the image of Cassiopeia
was placed in the sky in such a way that during part of the year
the queen appears upside down. The constellation is more easily
recognized as the letter m or w and can be found in the northern
sky all year round.
Centaurus is an ancient constellation, and one of two centaurs
in the night sky. Centaurs are creatures that are half-man and half-horse.
According to legend Centaurus is supposed to represent, Chiron a
gentle and intellectual centaur. He was the teacher of many of the
heroes of ancient legends, including Hercules, Achilles, and Jason.
The constellation lies low in the sky and is impossible to see from
most of the United States. It contains within it the closest star,
other than the sun, to the solar system, Proxima Centauri. This
is a companion star to Rigel Kentaurus, also known as Alpha Centauri.
An ancient constellation that is part of the story of Perseus and
Andromeda. Cepheus is the father of Andromeda and the husband to
Cassiopeia. He was forced to stand back and watch as his wife's
boasting resulted in misfortune and almost the death of their daughter.
The constellation is not extremely bright, but can easily be found
as a house shaped group of stars next to the m or w shape of Cassiopeia.
Cetus, the whale or sea-monster:
An ancient constellation that is part of the story of Perseus and
Andromeda. Cetus was the monster that Andromeda was to be sacrificed
to in order to ease the anger of the sea god Poseidon. Cetus is
an extremely large constellation that has been represented as both
a sea-monster or as simply a whale. The constellation can be found
by looking below Pisces the fish.
[send green star]
Chamaeleon, the chameleon:
A modern constellation created by Johann Bayer in 1603. It is found
close the south celestial pole, so it is impossible to see from
the United States and Canada.
[send green star]
Circinus, the drawing compass:
A modern constellation created by astronomer Nicolas Louis de La
Caille, between 1750 and 1754. The constellation represents the
drawing compasses used by carpenters and navigators of the time.
The constellation can be found directly to the east of Rigel Kentaurus
(Alpha Centauri) to those living in southern latitudes.
[send green star]
Columba, the dove:
A modern constellation that first appeared in 1679. It was formed
from stars that were once part of Canis Major. The constellation
can be found directly south of the constellation of Orion. A southerly
constellation, it can be seen by those living in the southern United
States. Another name for the constellation is Columba Noae, Noah's
Dove.
[send green star]
Coma Berenices, Berenice's hair:
One of the last of the ancient constellations. This constellation
relates how the Queen Berenice sacrificed her beautiful hair to
the goddess Aphrodite in order to assure the safe return of her
husband Ptolemy III Euergetes from battle. Upon his return the king
demanded to be shown her hair which had been stolen from the temple.
The temple priest in order to save his own life, claimed that Aphrodite
was so moved by the sacrifice removed the hair and placed it into
the skies as a constellation. Coma Berenices is a small, faint constellation
that can be found immediately to the east of Leo.
[send green star]
Corona Australis, the southern crown:
One of the most difficult of the ancient constellations to see
from the United States. Corona Australis represents either the crown
worn by the centaur Chiron, or a laurel wreath placed in the sky
by the god Bacchus to commemorate his mother Semele. The constellation
can be found south of Sagittarius, so it never rises very high for
most observers in the United States.
[send green star]
Corona Borealis, the northern crown:
A small, ancient constellation, yet one of the easiest to recognize.
Corona Borealis represents the crown given to Princess Ariadne by
the Greek god Dionysus in order to pledge his eternal love for the
mortal princess. The constellation can be found immediately to the
east of the bright constellation of Bootes, the bear-driver.
[send green star]
Another small, ancient constellation, yet very easy to recognize.
Corvus was a bird of the god Apollo, who in different stories upset
the god so much that he transformed the crows feathers from silver
to black and placed his image in the sky. Corvus can be found sitting
on the tail of Hydra, the sea serpent. Another way to find Corvus
is to look just below the constellation of Virgo, the maiden.
Crater, the cup:
A dim, ancient constellation that is involved in several stories.
In one story Crater is the cup that Ganymede (see Aquarius) keeps
full for the gods in Olympus. In another story Crater is the cup
that the god Apollo gave Corvus, the crow, to fill with spring water
and bring back to him. Since Corvus did not accomplish this task,
he is forever wanting to drink from Crater which is placed in front
of him in the night sky. Crater can be found on the back of Hydra,
the sea serpent, and just to the west of Corvus, the crow.
[send green star]
Crux is a modern constellation. During ancient times the stars
that made up this constellation were part of Centaurus. The first
mention of the constellation was in 1592 by Emerie Mollineux. The
French astronomer Augustin Royer is credited with defining it as
a separate constellation in 1679. Crux is the smallest constellation
in the night sky, and is not visible from latitudes north of 25
degrees (Key West, Florida).
Cygnus is one of the largest and easiest to find constellations
in the night sky. It is also one of the few constellations that
actually resembles its namesake. The constellation represents the
youth Cygnus who was a friend to Phaethon, the son of Apollo. Phaethon
attempted to drive Apollo's chariot (the Sun) across the sky one
day. He lost control of the horses and was shot out of the sky by
one of Zeus's thunderbolts before he could do anymore damage to
the earth. Phaethon landed in a river, and Cygnus kept diving into
the river like a swan in order to find his friend. Zeus was so impressed
by Cygnus's loyalty and friendship that he turned the youth into
a swan and placed his image into the night sky. The bright star
Deneb is one of the three stars (along with Altair and Vega) that
comprise the asterism known as the "Summer Triangle".
Cygnus is visible throughout the summer and well into the fall.
Delphinus, the dolphin:
A small but ancient constellation that is easily located in the
night sky. Delphinus represents the dolphin that helped the sea
god Poseidon win the heart of his wife, the mermaid Amphitrite.
In another story Delphinus is the dolphin that helped the musician
Arion escape from sailors who attempted to throw him overboard and
steal his belongings. The god Apollo was so moved by Arion's music,
he sent the dolphin to carry him to the shore. The constellation
can be found to the east of the bright star Altair in the constellation
of Aquila, the eagle.
[send green star]
Dorado, the goldfish:
Created in 1603 by Johann Bayer from information gathered by European
sailors. Dorado represents not the goldfish kept as pets, but a
type of fish that can be found in the seas of the Southern Hemisphere.
The constellation lies west of the bright star Canopus in Carina,
so is invisible to most of the United States.
[send green star]