# Former constellations

Former constellations are old historical Western constellations that for various reasons are no longer widely recognised or are not officially recognised by the International Astronomical Union (IAU). Prior to 1930, many of these defunct constellations were traditional in one or more countries or cultures. Some only lasted decades but others were referred to over many centuries. All are now recognised only for having classical or historical value. Many former constellations had complex Latinised names after objects, people, or mythological or zoological creatures. Others with unwieldy names were shortened for convenience. For example, Scutum Sobiescianum was reduced to Scutum, Mons Mensae to Mensa, and Apparatus Sculptoris to Sculptor.
Some of the Northern Sky's former constellations were placed in the less populated regions between the traditional brighter constellations just to fill gaps. In the Southern Sky, new constellations were often created from about the 15th century by voyagers who began journeying south of the Equator. European countries like England, France, the Netherlands, German or Italian states, etc., often supported and popularised their own constellation outlines. In some cases, different constellations occupied overlapping areas and included the same stars. These former constellations are often found in older books, star charts, or star catalogues.
The 88 modern constellation names and boundaries were standardised by Eugene Delporte for the IAU in 1930, under an international agreement, removing any possible astronomical ambiguities between astronomers from different countries. Nearly all former or defunct constellations differ in their designated boundaries inasmuch as they have outlines that do not follow the exact lines of right ascension and declination.

## Noteworthy former constellations
### Argo Navis

Argo Navis is the only constellation from Ptolemy's original list of 48 constellations that is no longer officially recognized. Due to its large size, it was split into three constellations by Nicolas Louis de Lacaille: Carina (the keel), Puppis (the poop deck), and Vela (the sails). The new constellations were introduced in the 1763 star catalog Coelum Australe Stelliferum, which was published soon after de Lacaille's death.

### Quadrans Muralis

Quadrans Muralis was originally created in 1795, placed in the northern skies between the still-accepted constellations Boötes and Draco. The Quadrantids meteor shower is named after this former constellation.

### Remnant nomenclature

* 53 Eridani is named Sceptrum from the former constellation Sceptrum Brandenburgicum.
* HD 85951 is named Felis from the former constellation Felis.

## List of former constellations

| Name | Genitive | Meaning | Date created | Created by | Notable stars | Position |
| Anguilla | Anguillae | Eel | 1754 | John Hill | ε Equulei, ε, κ Delphini, 66 Aquilae, υ Sagittarii, α, δ, ε Scuti | between Equuleus, Delphinus, Aquila and Serpens |
| Antinous | Antinoi | Antinous | 132 | Emperor Hadrian | δ, η, θ, ι, κ, λ and ν Aquilae | Southern Aquila |
| Apes | Apium | Bees (renamed to Vespa, then Lilium, then to Musca Borealis) | 1612 | Petrus Plancius | 33, 35 Arietis, Lilli Borea and Bharani | between Perseus and Aries |
| Apis | Apis | Bee (obsolete name and renamed to Musca Australis, and then shortened to Musca) | 1598 | Petrus Plancius | List | where Musca is now |
| Aranea | Araneae | Long-Legged Spider | 1754 | John Hill | 53, 55, 57, 61, 63, 68, 69, 75, 83, 87, y Virginis and HD 120544 | between Virgo and Corvus |
| Argo Navis | Argus Navis | The Ship Argo (now divided into Carina, Puppis, and Vela) | 2nd century | Claudius Ptolemy | List (Carina, Puppis, Vela) | where Carina, Puppis and Vela reside now |
| Asselli and Praesepe | Assellorum, Praesepis | Dionysus's Asses (Asellus Borealis and Asellus Australis) and Manger (Beehive Cluster) | 3rd century BC | Aratus | Asellus Borealis and Asellus Australis | middle part of Cancer |
| Asterion and Chara | | Northern and Southern Dogs in Canes Venatici | 1690 | Johannes Hevelius. | Cor Caroli and β Canum Venaticorum | where Canes Venatici is now |
| Battery of Volta | | Battery | 1807 | Thomas Young | 1 and 9 Pegasi | between Delphinus and Pegasus |
| Bufo | Bufonis | Toad | 1754 | John Hill | 58 Hydrae, Sigma Librae | tail of Hydra |
| Cancer Minor | Cancri Minoris | Lesser Crab | 1613 | Petrus Plancius | 68, 74, 81, 85 Geminorum and HIP 36616 | south-western Gemini |
| Capra and Haedi | Caprae, Haedorum | Goat Amalthea (stars surrounding Capella) and the Kids (Haedus I and Haedus II) | 3rd century BC | Aratus | ζ and η Aurigae | eastern Auriga |
| Cerberus | Cerberi | Cerberus (guardian dog of Hades) | 1690 | Johannes Hevelius | 93, 95, 102 ‍and ‍109 ‍Herculis | eastern Hercules |
| Cor Caroli Regis Martyris | Cordis Caroli | Charles's Heart | 1673 | Charles Scarborough | Cor Caroli | central Canes Venatici |
| Corona Firmiana | Coronae Firmianae | Corona Borealis renamed to honor Count Leopold Anton von Firmian | 1730 | Corbinianus Thomas | List | where Corona Borealis is now |
| Custos Messium | Custodis Messium | Keeper of harvests | 1775 | Jérôme Lalande | 23, 47, 49, 50 Cassiopeiae, γ, CS Camelopardalis | between Cassiopeia and Camelopardalis |
| Deltoton | | Delta (obsolete name for Triangulum Boreale) | 1540 | Petrus Apianus | Mothallah, β and γ Trianguli | Triangulum |
| Dentalium | Dentalii | Tooth Shell | 1754 | John Hill | 69, 71 Aquilae, 4, 11, 12, 15, 16 and 21 Aquarii | between Aquila and Aquarius |
| Felis | Felis | Cat | 1799 | Jérôme Lalande | G, I Hydrae, Felis, HD 82573 and HD 78702 | southern Hydra |
| Frederici Honores | Frederici Honorum | Frederick's Honors | 1787 | Johann Elert Bode | |
| Gallus | Galli | Rooster | 1613 | Petrus Plancius |
| Gladii Electorales Saxonici | Gladiorum Electoralium Saxonicorum | Crossed Swords of the Electorate of Saxony | 1684 | Gottfried Kirch |
| Globus Aerostaticus | Globi Aerostatici | Hot air balloon | 1798 | Jérôme Lalande |
| Gryphites | Gryphitis | Gryphaea shellfish | 1754 | John Hill |
| Hippocampus | Hippocampi | Sea Horse | 1754 | John Hill |
| Hirudo | Hirudinis | Leech | 1754 | John Hill |
| Jordanus | Jordani | River Jordan | 1613 | Petrus Plancius |
| Leo Palatinus | Leonis Palatini | Lion to honor the Elector Palatine Charles Theodore and his wife Elisabeth Auguste | 1785 | Karl-Joseph König |
| Lilium | Lilii | Fleur de Lys (renamed Musca Borealis) | 1679 | Augustin Royer/P. Anthelme |
| Limax | Limacis | Slug | 1754 | John Hill |
| Linum Piscium | Lini Piscium | The line connecting the fish (renamed by Bode in 1801 from Hevelius's Linum Austrinum and Linum Boreum; known as Lineola too) | 1590 | Thomas Hood |
| Lochium Funis | Lochii Funis | Log line (renamed Linea Nautica in 1888 by Eliza A. Bowen) | 1801 | Johann Elert Bode |
| Lumbricus | Lumbrici | Earthworm | 1754 | John Hill |
| Machina Electrica | Machinae Electricae | Electricity generator | 1800 | Johann Elert Bode |
| Malus | Mali | Mast | 1844 | John Herschel |
| Manis | Manis | Pangolin | 1754 | John Hill |
| Marmor Sculptile | Marmoris Sculptilis | Bust of Columbus | 1810 | William Croswell |
| Mons Maenalus | Montis Maenali | Mount Mainalo | 1690 | Johannes Hevelius |
| Musca Borealis | Muscae Borealis | Northern Fly | 1690 | Johannes Hevelius |
| Noctua | Noctuae | Owl | 1822 | Alexander Jamieson |
| Norma Nilotica | Normae Nilotica | Nilometer | 1822 | Alexander Jamieson | | Western edge of Aquarius |
| Nubecula Major and Nubecula Minor | Nubeculae Majoris, Nubeculae Minoris | Magellanic Clouds | 1603 | Johann Bayer |
| Officina Typographica | Officinae Typographicae | Printshop | 1801 | Johann Elert Bode |
| Patella | Patellae | Limpet | 1754 | John Hill |
| Phaethon | Phaethontis | Phaethon | Middle Ages | Aratus/Hyginus |
| Phoenicopterus | Phoenicopteri | Flamingo (an obsolete name for Grus) | early 17th century | Petrus Plancius/Paulus Merula | List | where Grus is now |
| Pinna Marina | Pinnae Marinae | Mussel | 1754 | John Hill |
| Piscis Notus | Piscis Noti | Southern Fish (obsolete name for Piscis Austrinus) | 3rd century BC | Aratus |
| Pluteum | Plutei | Parapet (obsolete for Pictor) | 1881 | Richard Andree | List | where Pictor is now |
| Polophylax | Polophylacis | Guardian of the Pole | 1592 | Petrus Plancius |
| Pomum Imperiale | Pomi Imperialis | Leopold's orb | 1688 | Gottfried Kirch |
| Psalterium Georgii | Psalterii Georgii | George's Psaltery (renamed to Harp Georgii by Lalande) | 1781 | Maximilian Hell |
| Quadrans Muralis | Quadrantis Muralis | Mural Quadrant | 1795 | Jérôme Lalande |
| Quadratum | Quadrati | Rhombus (obsolete name for Reticulum Rhomboidalis) | 1706 | Carel Allard |
| Ramus Pomifer | Rami Pomiferi | Apple-bearing Branch | 1690 | Johannes Hevelius |
| Robur Carolinum | Roboris Carolini | Charles' Oak | 1679 | Edmund Halley |
| Rosa | Rosae | Rose | 1536 | Petrus Apianus |
| Sagitta Australis | Sagittae Australis | Southern Arrow | 1613 | Petrus Plancius |
| Scarabaeus | Scarabaei | Rhinoceros Beetle | 1754 | John Hill |
| Sceptrum Brandenburgicum | Sceptri Brandenburgici | Scepter of Brandenburg | 1688 | Gottfried Kirch |
| Sceptrum et Manus Iustitiae | Sceptri et Manus Iustitiae | Scepter and Hand of Justice | 1679 | Augustin Royer |
| Sciurus Volans | Sciuri Volantis | Flying Squirrel (now part of Camelopardalis) | 1810 | William Croswell |
| Sextans Uraniae | Sextantis Uraniae | Urania's Sextant (obsolete name for Sextans) | 1690 | Johannes Hevelius |
| Siren, Ceneus and Lang | | Siren, Lapith Caeneus and Toucan | early 17th century | Unknown/Willem Jansz Blaeu |
| Solarium | Solarii | Sundial | 1822 | Alexander Jamieson |
| Sudarium Veronicae | Sudarii Veronicae | Sudarium of Veronica | 1643 | Antoine Marie Schyrle de Rheita |
| Tarabellum and Vexillum | Tarabelli, Vexilli | Drill and flag-like Standard | 12th century | Michael Scot |
| Tarandus or Rangifer | Tarandi, Rangiferi | Reindeer | 1736 | Pierre Charles Lemonnier |
| Taurus Poniatovii | Tauri Poniatovii | Poniatowski's Bull | 1777 | Marcin Poczobut |
| Telescopium Herschelii | Telescopii Herschelii | Herschel's Telescope (renamed from Tubus Herschelii Major by Bode in 1801) | 1781 | Maximilian Hell |
| Testudo | Testudinis | Tortoise | 1754 | John Hill |
| Tigris | Tigridis | Tigris River | 1613 | Petrus Plancius |
| Triangulum Majus | Trianguli Majoris | Large Triangle (obsolete name for Triangulum) | 1690 | Johannes Hevelius | List | where Triangulum is now |
| Triangulum Minus | Trianguli Minoris | Small Triangle | 1690 | Johannes Hevelius |
| Triangulus Antarcticus | Trianguli Antarctici | Obsolete name for Triangulum Australe | 1589 | Petrus Plancius |
| Tubus Herschelii Minor | Tubi Herschelii Minoris | Herschel's Reflector | 1781 | Maximilian Hell |
| Turdus Solitarius | Turdi Solitarii | Solitary Thrush (renamed to Mocking Bird and then to Noctua). Named in honor of the Rodrigues solitaire, an extinct flightless bird related to the dodo. | 1776 | Pierre Charles Lemonnier |
| Uranoscopus | Uranoscopi | Star-Gazer fish | 1754 | John Hill |
| Urna | Urnae | Urn of Aquarius | 1596 | Zacharias Bornmann |
| Vespa | Vespae | Wasp (an obsolete name for Musca Borealis) | 1624 | Jakob Bartsch |
| Triangula, Triangulum, Catuli, Corona, Corolla, Piscis, Camelus, Vulpes, Equus, Delphin, Ursa Minor, Canis, Felis, Leaena and Cervus | Triangulae, Trianguli, Catulorum, Coronae, Corollae, Piscis, Cameli, Vulpis, Equi, Delphinis, Ursae Minoris, Canis, Felis, Leaenae, Cervi | Obsolete names for Triangulum Boreale, Triangulum Australe, Canes Venatici, Corona Borealis, Corona Australis, Piscis Australis, Cameleopardalis, Vulpecula et Anser, Equuleus, Delphinus, Ursa Major, Ursa Minor, Canis Major, Canis Minor, Leo Minor and Monoceros | 1873 | Richard Proctor |