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The Constellations

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Why Are There Constellations?

Ever since people first wandered the Earth, great significance has been given to objects seen in the sky. Ancient peoples noticed that the rising and setting points of the Sun and the Moon, as well as the visibility of stars, change throughout the year. Therefore, all cultures have long traditions of using astronomy as a tool of survival. They developed astronomical methods for navigation in space and time, in particular, to determine their calendars: to measure equinoxes and solstices and to predict the seasonal behaviour of nature. For the Inuit in the far north, this was the prediction of the return of the Sun; for the Egyptians, it was the flood of the Nile; for the Babylonians and others in the monsoon zone, it was the predominant direction of the wind; and for the Aboriginal Australians, it was the emu’s breeding cycle. 

How Humans Made Constellations
The images interpreted by cultural groups from patterns of stars depend on the natural environment and cultural habits: only people who have seen emus can interpret such a bird in an arbitrary pattern in the sky. The effect of human cognition that makes us see patterns in arbitrary configurations (like clouds, mountain chains, or stars) is studied by gestalt psychology. Several network analysis studies have shown that the stellar patterns were grouped in similar ways all over the Earth (Bucur 2021, 2022; Kemp et al., 2022). However, humans are also social animals and love to exchange. As we invented languages and symbols, we learned to exchange knowledge and communicate with others of our species. Observations of the skyscape and celestial patterns have always been exchanged among people of various cultures. 

Practical Application
In particular, the Chinese and the Inca both grouped their constellations according to the four seasons. In the case of the Inca, each season was accompanied by “dark constellations”: constellations formed from the dark clouds in the Milky Way, not from stars (Gullberg et al., 2020; e.g., Figure 1). The animals seen in this procession indicate events in nature: when the constellation of the “Llama nursing its offspring” appears, llama babies are born, when Fox appears, fox babies are born, when then the constellations of the Snake and the Toad appear, it is the wet season, and so on.



Figure 1: The Dark Constellations of the Inca – right to left: (1) Machacuay, (2) Hanp’atu, (3) Yutu, (4) Yacana, (5) Uñallamacha, (6) Atoq, and (7) Michij runa. Art by Jessica Gullberg, constellations inspired by Gary Urton and Miguel Araoz Cartagena. Image Credit: Gullberg et al. (2020, fig. 4), reworked by Gullberg and Gullberg (2022).

The ancient Chinese constructed tiny constellations, some consisting of only one to three stars. However, these small constellations were grouped into super-constellations, covering extended areas and dividing the sky roughly into quarters. Their names are not similarly directly linked to nature as the Inca constellations, though they are also rooted in nature-based belief systems.



Figure 2: Some of the common Chinese asterisms (yellow lines) are grouped into the super-constellations Dark Warrior (winter), Azure Dragon (spring), Vermilion Bird (summer), and White Tiger (autumn). Here they are contrasted with the modern European asterisms (cyan) of the Autumn Square, the Summer Triangle, the Spring Triangle and the Winter Hexagon. Image credit: Susanne M Hoffmann.


The 88 IAU Constellations

 

 

Figure 3: The front cover of the IAU book edition: Delporte’s Délimitation scientifique des constellations. Image Credit: Michael E. Bakich library
 

By the 19th century, over a hundred constellations could be found on various star charts since there was nothing to stop astronomers from inventing new figures between the existing ones, which they often did to flatter a patron or monarch. In the 19th century, there were several changes in the scientific method and research focus. Many variable stars were discovered, stellar transients were investigated, and astrophysics with electric measurements of brightnesses and spectra of stars was developed. With the high number of investigated stars, new nomenclatures emerged, many of them relying on the constellation names. Therefore, one of the IAU’s first tasks after its formation was to define an internationally agreed set of constellations. At its first General Assembly held in Rome in 1922, the IAU’s Commission on Notations and Units agreed on a list of 88 constellations covering the entire sky, with three-letter abbreviations of their Latin names. These are the 88 IAU constellations that are still recognised today, as described in more detail below.

But these constellations still lacked officially defined boundaries, and this was the next task to be tackled. At the second IAU General Assembly held in Cambridge, England, in 1925, Eugène Delporte of the Royal Observatory in Brussels presented proposals for a clearly defined system of constellation boundaries drawn along lines of right ascension and declination, the celestial equivalents of longitude and latitude on Earth. The IAU took up the suggestion and appointed Delporte to prepare official boundaries with the specific requirement that all known variable-brightness stars should remain within the constellation to which they had already been assigned. This resulted in some awkward-looking outlines.

Delporte’s new boundaries were approved by the IAU at its General Assembly at Leiden in 1928, and the results were published in 1930 in Délimitation Scientifique des Constellations along with an accompanying Atlas Céleste. So constellations, which started out as imaginary patterns of stars, became scientifically defined areas of sky. Nowadays, when astronomers say something is “in” a given constellation, they mean it is simply within those defined boundaries, not that it is part of any star pattern.


Constellation Figures

In contrast to the historical and Indigenous concepts of constellations as patterns of light points in the night sky, such as the Chinese star chains or the lists of stars under a common headline in historical star catalogues, the IAU defines a constellation as an area in the sky surrounded by its boundary. The boundaries indicated by sky coordinates are the defining quantity. Note that these boundaries, though the standard recognised by the IAU, are not necessarily universally utilised: many cultures have had their own asterisms for hundreds or thousands of years and continue to use them.

In star maps or charts, it is common to mark line patterns representing the shapes that give the name to the constellations. For IAU constellations, no stick figures or figurative painting styles are formally defined. Consequently, the same constellation may have several variants in its visual representation.

In addition to the constellation line patterns, there are also asterism line patterns. Asterisms are distinct from constellations. They are patterns or shapes of stars that are not related to the known constellations but are widely recognised. Examples include: the seven bright stars in Ursa Major, known as “the Plough” in Europe, “the Big Dipper” in America and “the Northern Dipper” traditionally in China; and the “Summer Triangle”, a large triangle seen in the summer and autumn night sky of the northern hemisphere, composed of the bright stars (from three different constellations) Altair, Deneb and Vega. Asterisms can even consist of star clusters (like “the Seven Sisters”, or the Pleiades cluster), groups of star clusters (like “the Golden Gate of the Ecliptic” consisting of the Pleiades and Hyades clusters) or of only one bright star (like the Greek star Capella or the Chinese single star-asterisms). 

Significance
It should be realised that the groups of stars that made up the original constellation patterns have, in most cases, no physical connection with each other. All constellations are a matter of perspective. They are simply our Earth-based interpretation of two-dimensional star patterns on the celestial sphere, composed of stars of various different brightnesses and at widely differing distances from Earth.


IAU Constellation Names

 

Each Latin constellation name has two forms: the nominative, used when talking about the constellation itself, and the genitive, or possessive, used in star names. For instance, Hamal, the brightest star in the constellation Aries (nominative form), is also called Alpha Arietis (genitive form), meaning literally “the alpha of Aries”.

The table below includes the Latin names for each IAU constellation, their abbreviated names and a chart showing their boundaries. These are a mix of the ancient Greek patterns recorded by Ptolemy in addition to some more “modern” patterns observed later by astronomers.

Pronunciation of Constellation Names

Experienced astronomers, both professional and amateur, may pronounce constellation names differently but have no trouble understanding each other. There is no single correct way to pronounce a constellation name, and several sources address the issue. See, for example:

Sky & Telescope web page on constellations names and pronunciation
A link to the text “Latin Pronunciation Demystified “ is available on http://www.ai.uga.edu/mc/latinpro.pdf
Rumrill (1936) “Star Name Pronunciation” 


Charts and tables

The charts below were produced in collaboration with Sky & Telescope magazine (Roger Sinnott and Rick Fienberg). Alan MacRobert's constellation patterns, drawn in green on the charts, were influenced by those of H. A. Rey but, in many cases, were adjusted to preserve earlier traditions. Each chart was produced using the J2000 epoch. The images are released under the Creative Commons Attribution 4.0 International license.

Quick links : And , Ant, Aps, Aqr, Aql, Ara, Ari, Aur, Boo, Cae, Cam, Cnc, CVn, CMa, CMi, Cap, Car, Cas, Cen, Cep, Cet, Cha, Cir, Col, Com, CrA, CrB, Crv, Crt, Cru, Cyg, Del, Dor, Dra, Equ, Eri, For, Gem, Gru, Her, Hor, Hya, Hyi, Ind, Lac, Leo, LMi, Lep, Lib, Lup, Lyn, Lyr, Men, Mic, Mon, Mus, Nor, Oct, Oph, Ori, Pav, Peg, Per, Phe, Pic, Psc, PsA, Pup, Pyx, Ret, Sge, Sgr, Sco, Scl, Sct, Ser, Sex, Tau, Tel, Tri, TrA, Tuc, UMa, UMi, Vel, Vir, Vol, Vul , Chart text legend

Charts Graphical Legend

Charts

Name /
Pronunciation
Abbr. English Name Genitive /
Pronunciation
Downloads

Andromeda

an-DRAH-mih-duh
And the Chained Maiden Andromedae
an-DRAH-mih-dee

Constellation charts
GIF (117 KB)
PDF (829 KB)
TIF

Constellation boundary
TXT (2 KB)

Antlia

ANT-lee-uh
Ant the Air Pump Antliae
ANT-lee-ee

Constellation charts
GIF (111 KB)
PDF (815 KB)
TIF

Constellation boundary
TXT (1 KB)

Apus

APE-us, APP-us

Aps the Bird of Paradise

Apodis

APP-oh-diss

Constellation charts
GIF (155 KB)
PDF (836 KB)
TIF

Constellation boundary
TXT (1 KB)

Aquarius

uh-QUAIR-ee-us

Aqr the Water Bearer

Aquarii

uh-QUAIR-ee-eye

Constellation charts
GIF (124 KB)
PDF (879 KB)
TIF

Constellation boundary
TXT (1 KB)

Aquila

ACK-will-uh, uh-QUILL-uh

Aql the Eagle

Aquilae

ACK-will-ee, uh-QUILL-ee

Constellation charts
GIF (108 KB)
PDF (820KB)
TIF

Constellation boundary
TXT (1 KB)

Ara

AIR-uh, AR-uh

Ara the Altar

Arae

AIR-ee, AR-ee

Constellation charts
GIF (114 KB)
PDF (807 KB)
TIF

Constellation boundary
TXT (1 KB)

Aries

AIR-eez, AIR-ee-yeez

Ari the Ram

Arietis

uh-RYE-ih-tiss

Constellation charts
GIF (118 KB)
PDF (805 KB)
TIF

Constellation boundary
TXT (1 KB)

Auriga

aw-RYE-guh

Aur the Charioteer

Aurigae

aw-RYE-ghee

Constellation charts
GIF (122 KB)
PDF (381 KB)
TIF

Constellation boundary
TXT (1 KB)

Boötes

bo-OH-teez

Boo the Herdsman

Boötis

bo-OH-tiss

Constellation charts
GIF (147 KB)
PDF (823KB)
TIF

Constellation boundary
TXT (1 KB)

Caelum

SEE-lum

Cae the Engraving Tool

Caeli

SEE-lye

Constellation charts
GIF (97 KB)
PDF (780 KB)
TIF

Constellation boundary
TXT (1 KB)

Camelopardalis

cuh-MEL-oh- PAR-duh-liss

Cam the Giraffe

Camelopardalis

cuh-MEL-oh- PAR-duh-liss

Constellation charts
GIF (156 KB)
PDF (888 KB)
TIF

Constellation boundary
TXT (2 KB)

Cancer

CAN-ser

Cnc the Crab

Cancri

CANG-cry

Constellation charts
GIF (108 KB)
PDF (814 KB)
TIF

Constellation boundary
TXT (1 KB)

Canes Venatici

CANE-eez (CAN-eez) ve-NAT-iss-eye

CVn the Hunting Dogs

Canum Venaticorum

CANE-um (CAN-um) ve-nat-ih-COR-um

Constellation charts
GIF (106 KB)
PDF (790 KB)
TIF

Constellation boundary
TXT (1 KB)

Canis Major

CANE-iss (CAN-iss) MAY-jer

CMa the Great Dog

Canis Majoris

CANE-iss (CAN-iss) muh-JOR-iss

Constellation charts
GIF (134 KB)
PDF (849 KB)
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Constellation boundary
TXT (1 KB)

Canis Minor

CANE-iss (CAN-iss) MY-ner

CMi the Lesser Dog

Canis Minoris

CANE-iss (CAN-iss) mih-NOR-iss

Constellation charts
GIF (83 KB)
PDF (766 KB)
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Constellation boundary
TXT (1 KB)

Capricornus

CAP-rih-CORN-us

Cap the Sea Goat

Capricorni

CAP-rih-CORN-eye

Constellation charts
GIF (98 KB)
PDF (818 KB)
TIF

Constellation boundary
TXT (1 KB)

Carina

cuh-RYE-nuh, cuh-REE-nuh

Car the Keel

Carinae

cuh-RYE-nee, cuh-REE-nee

Constellation charts
GIF (143 KB)
PDF (882 KB)
TIF

Constellation boundary
TXT (1 KB)

Cassiopeia

CASS-ee-uh-PEE-uh

Cas the Seated Queen

Cassiopeiae

CASS-ee-uh-PEE-ye

Constellation charts
GIF (139 KB)
PDF (846 KB)
TIF

Constellation boundary
TXT (1 KB)

Centaurus

sen-TOR-us

Cen the Centaur

Centauri

sen-TOR-eye

Constellation charts
GIF (178 KB)
PDF (549 KB)
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Constellation boundary
TXT (1 KB)

Cepheus

SEE-fyoos, SEE-fee-us, SEF-ee-us

Cep the King

Cephei

SEE-fee-eye, SEF-ee-eye

Constellation charts
GIF (200 KB)
PDF (873 KB)
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Constellation boundary
TXT (2 KB)

Cetus

SEE-tus

Cet the Sea Monster

Ceti

SEE-tie

Constellation charts
GIF (122 KB)
PDF (873 KB)
TIF

Constellation boundary
TXT (1 KB)

Chamaeleon

cuh-MEAL-yun, cuh-MEAL-ee-un

Cha the Chameleon

Chamaeleontis

cuh-MEAL-ee-ON-tiss

Constellation charts
GIF (183 KB)
PDF (834 KB)
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Constellation boundary
TXT (1 KB)

Circinus

SER-sin-us

Cir the Drawing Compass

Circini

SER-sin-eye

Constellation charts
GIF (131 KB)
PDF (818 KB)
TIF

Constellation boundary
TXT (1 KB)

Columba

cuh-LUM-buh

Col the Dove

Columbae

cuh-LUM-bee

Constellation charts
GIF (99 KB)
PDF (797 KB)
TIF

Constellation boundary
TXT (1 KB)

Coma Berenices

COE-muh BER-uh-NICE-eez

Com the Bernice's Hair

Comae Berenices

COE-mee BER-uh-NICE-eez

Constellation charts
GIF (101 KB)
PDF (788 KB)
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Constellation boundary
TXT (1 KB)

Corona Australis

cuh-ROE-nuh aw-STRAL-iss3

CrA the Southern Crown

Coronae Australis

cuh-ROE-nee aw-STRAL-iss3

Constellation charts
GIF (107 KB)
PDF (787 KB)
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Constellation boundary
TXT (1 KB)

Corona Borealis

cuh-ROE-nuh bor-ee-AL-iss3

CrB the Northern Crown

Coronae Borealis

cuh-ROE-nee bor-ee-AL-iss3

Constellation charts
GIF (89 KB)
PDF (771 KB)
TIF

Constellation boundary
TXT (1 KB)

Corvus

COR-vus

Crv the Crow

Corvi

COR-vye

Constellation charts
GIF (74 KB)
PDF (763 KB)
TIF

Constellation boundary
TXT (1 KB)

Crater

CRAY-ter

Crt the Cup

Crateris

cruh-TEE-riss

Constellation charts
GIF (75 KB)
PDF (787 KB)
TIF

Constellation boundary
TXT (1 KB)

Crux

CRUCKS, CROOKS

Cru the Southern Cross

Crucis

CROO-siss

Constellation charts
GIF (119 KB)
PDF (811 KB)
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Constellation boundary
TXT (1 KB)

Cygnus

SIG- SIG-nu

Cyg the Swan

Cygni

SIG-nye

Constellation charts
GIF (174 KB)
PDF (866 KB)
TIF

Constellation boundary
TXT (1 KB)

Delphinus

del-FINE-us, del-FIN-us

Del the Dolphin

Delphini

del-FINE-eye, del-FIN-eye

Constellation charts
GIF (81 KB)
PDF (767 KB)
TIF

Constellation boundary
TXT (1 KB)

Dorado

duh-RAH-do

Dor the Swordfish

Doradus

duh-RAH-dus

Constellation charts
GIF (108 KB)
PDF (795 KB)
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Constellation boundary
TXT (1 KB)

Draco

DRAY-co

Dra the Dragon

Draconis

druh-CONE-iss

Constellation charts
GIF (153 KB)
PDF (898 KB)
TIF

Constellation boundary
TXT (2 KB)

Equuleus

eh-QUOO-lee-us

Equ the Little Horse

Equulei

eh-QUOO-lee-eye

Constellation charts
GIF (69 KB)
PDF (749 KB)
TIF

Constellation boundary
TXT (1 KB)

Eridanus

ih-RID-un-us

Eri the River

Eridani

ih-RID-un-eye

Constellation charts
GIF (167 KB)
PDF (941 KB)
TIF

Constellation boundary
TXT (2 KB)

Fornax

FOR-naks

For the Furnace

Fornacis

for-NAY-siss

Constellation charts
GIF (108 KB)
PDF (811 KB)
TIF

Constellation boundary
TXT (1 KB)

Gemini

JEM-uh-nye, JEM-uh-nee

Gem the Twins

Geminorum

JEM-uh-NOR-um

Constellation charts
GIF (122 KB)
PDF (832 KB)
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Constellation boundary
TXT (1 KB)

Grus

GRUSS, GROOS

Gru the Crane

Gruis

GROO-iss

Constellation charts
GIF (127 KB)
PDF (829 KB)
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Constellation boundary
TXT (1 KB)

Hercules

HER-kyuh-leez

Her the Hercules

Herculis

HER-kyuh-liss

Constellation charts
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Constellation boundary
TXT (1 KB)

Horologium

hor-uh-LOE-jee-um

Hor the Clock

Horologii

hor-uh-LOE-jee-eye

Constellation charts
GIF (107 KB)
PDF (788 KB)
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Constellation boundary
TXT (1 KB)

Hydra

HIGH-druh

Hya the Female Water Snake

Hydrae

HIGH-dree

Constellation charts
GIF (127 KB)
PDF (929 KB)
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Constellation boundary
TXT (2 KB)

Hydrus

HIGH-drus

Hyi the Male Water Snake

Hydri

HIGH-dry

Constellation charts
GIF (143 KB)
PDF (821 KB)
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Constellation boundary
TXT (1 KB)

Indus

IN-dus

Ind the Indian

Indi

IN-dye

Constellation charts
GIF (131 KB)
PDF (834 KB)
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Constellation boundary
TXT (1 KB)

Lacerta

luh-SER-tuh

Lac the Lizard

Lacertae

luh-SER-tee

Constellation charts
GIF (124 KB)
PDF (812 KB)
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Constellation boundary
TXT (1 KB)

Leo

LEE-oh

Leo the Lion

Leonis

lee-OH-niss

Constellation charts
GIF (142 KB)
PDF (820 KB)
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Constellation boundary
TXT (1 KB)

Leo Minor

LEE-oh MY-ner

LMi the Lesser Lion

Leonis Minoris

lee-OH-niss mih-NOR-iss

Constellation charts
GIF (103 KB)
PDF (799 KB)
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Constellation boundary
TXT (1 KB)

Lepus

LEEP-us, LEP-us

Lep the Hare

Leporis

LEP-or-iss

Constellation charts
GIF (94 KB)
PDF (787 KB)
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Constellation boundary
TXT (1 KB)

Libra

LEE-bruh, LYE-bruh

Lib the Scales

Librae

LEE-bree, LYE-bree

Constellation charts
GIF (111 KB)
PDF (819 KB)
TIF

Constellation boundary
TXT (1 KB)

Lupus

LOOP-us

Lup the Wolf

Lupi

LOOP-eye

Constellation charts
GIF (137 KB)
PDF (857 KB)
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Constellation boundary
TXT (1 KB)

Lynx

LINKS

Lyn the Lynx

Lyncis

LIN-siss

Constellation charts
GIF (111 KB)
PDF (796 KB)
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Constellation boundary
TXT (1 KB)

Lyra

LYE-ruh

Lyr the Lyre

Lyrae

LYE-ree

Constellation charts
GIF (91 KB)
PDF (776 KB)
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Constellation boundary
TXT (1 KB)

Mensa

MEN-suh

Men the Table Mountain

Mensae

MEN-see

Constellation charts
GIF (161 KB)
PDF (827 KB)
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Constellation boundary
TXT (1 KB)

Microscopium

my-cruh-SCOPE-ee-um

Mic the Microscope

Microscopii

my-cruh-SCOPE-ee-eye

Constellation charts
GIF (87 KB)
PDF (776 KB)
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Constellation boundary
TXT (1 KB)

Monoceros

muh-NAH-ser-us

Mon the Unicorn

Monocerotis

muh-NAH-ser-OH-tiss

Constellation charts
GIF (110 KB)
PDF (821 KB)
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Constellation boundary
TXT (1 KB)

Musca

MUSS-cuh

Mus the Fly

Muscae

MUSS-see, MUSS-kee

Constellation charts
GIF (134 KB)
PDF (828 KB)
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Constellation boundary
TXT (1 KB)

Norma

NOR-muh

Nor the Carpenter's Square

Normae

NOR-mee

Constellation charts
GIF (118 KB)
PDF (803 KB)
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Constellation boundary
TXT (1 KB)

Octans

OCK-tanz

Oct the Octant

Octantis

ock-TAN-tiss

Constellation charts
GIF (140 KB)
PDF (821 KB)
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Constellation boundary
TXT (1 KB)

Ophiuchus

OFF-ee-YOO-kus, OAF-ee-YOO-kus

Oph the Serpent Bearer

Ophiuchi

OFF-ee-YOO-kye, OAF-ee-YOO-kye

Constellation charts
GIF (175 KB)
PDF (854 KB)
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Constellation boundary
TXT (2 KB)

Orion

oh-RYE-un, uh-RYE-un

Ori the Hunter

Orionis

or-eye-OH-niss

Constellation charts
GIF (181 KB)
PDF (873 KB)
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Constellation boundary
TXT (1 KB)

Pavo

PAY-vo

Pav the Peacock

Pavonis

puh-VOE-niss

Constellation charts
GIF (143 KB)
PDF (859 KB)
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Constellation boundary
TXT (1 KB)

Pegasus

PEG-us-us

Peg the Winged Horse

Pegasi

PEG-us-eye

Constellation charts
GIF (136 KB)
PDF (868 KB)
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Constellation boundary
TXT (2 KB)

Perseus

PER-see-us, PER-syoos

Per the Hero

Persei

PER-see-eye

Constellation charts
GIF (127 KB)
PDF (836 KB)
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Constellation boundary
TXT (1 KB)

Phoenix

FEE-nix

Phe

the Phoenix

 

Phoenicis

fuh-NICE-iss

Constellation charts
GIF (119 KB)
PDF (828 KB)
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Constellation boundary
TXT (1 KB)

Pictor

PICK-ter

Pic the Painter's Easel

Pictoris

pick-TOR-iss

Constellation charts
GIF (108 KB)
PDF (794 KB)
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Constellation boundary
TXT (1 KB)

Pisces

PICE-eez, PISS-eez

Psc the Fishes

Piscium

PICE-ee-um, PISH-ee-um

Constellation charts
GIF (87 KB)
PDF (859 KB)
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Constellation boundary
TXT (1 KB)

Piscis Austrinus

PICE-iss (PISS-iss) aw-STRY-nus

PsA the Southern Fish

Piscis Austrini

PICE-iss (PISS-iss) aw-STRY-nye

Constellation charts
GIF (87 KB)
PDF (778 KB)
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Constellation boundary
TXT (1 KB)

Puppis

PUP-iss

Pup the Stern

Puppis

PUP-iss

Constellation charts
GIF (185 KB)
PDF (868 KB)
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Constellation boundary
TXT (1 KB)

Pyxis

PIX-iss

Pyx the Mariner Compass

Pyxidis

PIX-ih-diss

Constellation charts
GIF (84 KB)
PDF (775 KB)
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Constellation boundary
TXT (1 KB)

Reticulum

rih-TICK-yuh-lum

Ret the Reticle

Reticuli

rih-TICK-yuh-lye

Constellation charts
GIF (107 KB)
PDF (786 KB)
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Constellation boundary
TXT (1 KB)

Sagitta

suh-JIT-uh

Sge the Arrow

Sagittae

suh-JIT-ee

Constellation charts
GIF (90 KB)
PDF (773 KB)
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Constellation boundary
TXT (1 KB)

Sagittarius

SAJ-ih-TARE-ee-us

Sgr the Archer

Sagittarii

SAJ-ih-TARE-ee-eye

Constellation charts
GIF (163 KB)
PDF (878 KB)
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Constellation boundary
TXT (1 KB)

Scorpius

SCOR-pee-us

Sco the Scorpion

Scorpii

SCOR-pee-eye

Constellation charts
GIF (194 KB)
PDF (874 KB)
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Constellation boundary
TXT (1 KB)

Sculptor

SCULP-ter

Scl the Sculptor

Sculptoris

sculp-TOR-iss

Constellation charts
GIF (119 KB)
PDF (810 KB)
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Constellation boundary
TXT (1 KB)

Scutum

SCOOT-um, SCYOOT-um

Sct the Shield

Scuti

SCOOT-eye, SCYOOT-eye

Constellation charts
GIF (120 KB)
PDF (784 KB)
TIF

Constellation boundary
TXT (1 KB)

Serpens

SER-punz

Ser the Serpent

Serpentis

ser-PEN-tiss

Constellation charts (Serpens Caput)
GIF (112 KB)
PDF (780 KB)
TIF

Constellation boundary (Serpens Caput)
TXT (1 KB)

Constellation charts (Serpens Cauda)
GIF (126 KB)
PDF (791 KB)
TIF

Constellation boundary (Serpens Cauda)
TXT (1 KB)

Sextans

SEX-tunz

Sex the Sextant

Sextantis

sex-TAN-tiss

Constellation charts
GIF (83 KB)
PDF (782 KB)
TIF

Constellation boundary
TXT (1 KB)

Taurus

TOR-us

Tau the Bull

Tauri

TOR-eye

Constellation charts
GIF (115 KB)
PDF (832 KB)
TIF

Constellation boundary
TXT (1 KB)

Telescopium

tel-ih-SCOPE-ee-um

Tel the Telescope

Telescopii

 tel-ih-SCOPE-ee-eye

Constellation charts
GIF (148 KB)
PDF (834 KB)
TIF

Constellation boundary
TXT (1 KB)

Triangulum

try-ANG-gyuh-lum

Tri the Triangle

Trianguli

try-ANG-gyuh-lye

Constellation charts
GIF (89 KB)
PDF (764 KB)
TIF

Constellation boundary
TXT (1 KB)

Triangulum Australe

try-ANG-gyuh-lum aw-STRAL-ee

TrA the Southern Triangle

Trianguli Australis

try-ANG-gyuh-lye aw-STRAL-iss

Constellation charts
GIF (124 KB)
PDF (815 KB)
TIF

Constellation boundary
TXT (1 KB)

Tucana

too-KAY-nuh, too-KAH-nuh

Tuc the Toucan

Tucanae

too-KAY-nee, too-KAH-nee

Constellation charts
GIF (127 KB)
PDF (806 KB)
TIF

Constellation boundary
TXT (1 KB)

Ursa Major

ER-suh MAY-jur

UMa the Great Bear

Ursae Majoris

ER-suh muh-JOR-iss

Constellation charts
GIF (174 KB)
PDF (885 KB)
TIF

Constellation boundary
TXT (1 KB)

Ursa Minor

ER-suh MY-ner

UMi the Little Bear

Ursae Minoris

ER-suh mih-NOR-iss

Constellation charts
GIF (135 KB)
PDF (800 KB)
TIF

Constellation boundary
TXT (1 KB)

Vela

VEE-luh, VAY-luh

Vel the Sails

Velorum

vee-LOR-um, vuh-LOR-um

Constellation charts
GIF (131 KB)
PDF (850 KB)
TIF

Constellation boundary
TXT (1 KB)

Virgo

VER-go

Vir the Maiden

Virginis

VER-jin-iss

Constellation charts
GIF (98 KB)
PDF (831 KB)
TIF

Constellation boundary
TXT (1 KB)

Volans

VOH-lanz

Vol the Flying Fish

Volantis

vo-LAN-tiss

Constellation charts
GIF (123 KB)
PDF (812 KB)
TIF

Constellation boundary
TXT (1 KB)

Vulpecula

vul-PECK-yuh-luh

Vul the Fox

Vulpeculae

vul-PECK-yuh-lee

Constellation charts
GIF (124 KB)
PDF (805 KB)
TIF

Constellation boundary
TXT (1 KB)

Charts Text Legend
Each constellation comes with the following basic information:

Name
Pronunciation of the name
Abbreviation
English Name
Genitive
Pronunciation of the genitive
Chart for screen view (GIF)
Chart for printing (PDF in A4 format)
Boundary coordinates (TXT)
Explanation of the fields:

The name is the Latin name adopted by the International Astronomical Union in 1930.
Pronunciation as described above.
Abbreviation, the standard three-letter form of the Latin name.
The popular name in English.
The genitive is the possessive form of the constellation’s name in Latin. For example, alpha Orionis is the alpha star in the constellation of Orion.
Pronunciation as described above.
Chart in GIF format, 1000 pixels wide.
Chart in PDF format, to be printed in A4 format.
A text file containing a set of coordinates that defines the boundaries of the constellations in the sky. The format is:
HH MM SS.SSSS| DD.DDDDDDD|XXX

Where:
HH MM SS.SSSS defines the right ascension hour, minute and second with J2000 coordinates
DD.DDDDDDD defines the declination with J2000 coordinates
XXX is the abbreviation of the constellation name
| is the separator of the fields

Example:
22 57 51.6729| 35.1682358|AND


More Information


Acknowledgements

We would like to acknowledge the contributions of WGSN President, Susanne M. Hoffmann, IAU OAO Deputy Director, Kelly Blumenthal, WGSN Vice President, Eric Mamajek, and WGSN members Robert H. van Gent, Ian Ridpath and Javier Mejuto (Honduras National Outreach Coordinator), IAU Director of Communications, Lars Lindberg Christensen (originator of the first version of this Theme), and the Head of the IAU Webteam, Raquel Yumi Shida.


References

  • Bucur, D. (2022). The network signature of constellation line figures. PLOS ONE, 17(7). https://doi.org/10.1371/journal.pone.0272270 
  • Covington, M. A. (2002). Celestial Objects for Modern Telescopes. Cambridge University Press, pp. 80-84.
  • Davenhall, A. C.; Leggett, S. K. (1997). Constellation Boundary Data (Davenhall+ 1989). VizieR On-line Data Catalog: VI/49 (Online data: http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=VI/49 )
  • Debarbat, S. (1988). Mapping the sky: past heritage and future directions: proceedings of the 133rd Symposium of the International Astronomical Union, held in Paris, France, 1-5 June 1987. International Astronomical Union. Symposium no. 133, Kluwer Academic Publishers, Dordrecht
  • Delporte, E. (1930) Délimitation scientifique des constellations. Cambridge University Press.
  • Flanders, T. Constellation Names and Abbreviations. Sky & Telescope, link: http://www.skyandtelescope.com/letsgo/helpdesk/Constellation_Names.html
  • Gullberg, Steven R, Hambacher, Duane W., Martín-Lopez, Alejandro, Mejuto, Javier, Munro, Andre M. and Orchiston, Wayne (2020). A cultural comparison of the “Dark Constellations” in the Milky Way. Journal of Astronomical History and Heritage, 23(2), 390‒404
  • Hoffmann, Susanne M and Wolfschmidt, Gudrun [ed.] (2022). Astronomy in Culture - Cultures of Astronomy, Nuncius Hamburgensis, Vol. 57, Hamburg/ Berlin 
  • Kanas, Nick (2007, 2012, 2019). Star Maps - History, Artistry, and Cartography, Springer Nature, Cham Kemp, Charles, Hamacher, Duane W., Little, Daniel R., Cropper, Simon J. (2022). Perceptual Grouping Explains Similarities in Constellations Across Cultures, Psychological Science Vol 33, Issue 3 https://doi.org/10.1177/09567976211044157
  • Ridpath, Ian, The IAU list of constellations, http://www.ianridpath.com/iaulist.1html
  • Shitong, Y. (1981). Chinese and Western Contrast Star Chart and Catalogue 1950.0 (Star Catalogue). Science Press. [伊世同《中西对照恒星图表1950.0(星表分册)》 (科学出版社 1981)]
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