Piscis Austrinus

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Piscis austrinus
Piscis austrinus
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Abbreviation: PsA
Genitive: Piscis Austrini
Symbology: the Southern Fish
Right ascension: 22 h
Declination: −30°
Area: 245 sq. deg. (60th)
Main stars:
Bayer/Flamsteed stars:
Stars with known planets:
Bright stars: 1
Nearby stars: 5
Brightest star: Fomalhaut (α Piscis Austrini) (1.16m)
Nearest star: Fomalhaut (α Piscis Austrini) (25 ly ly)
Messier objects:
Meteor showers: ?
Bordering constellations: Capricornus
Microscopium
Grus
Sculptor
Aquarius
Visible at latitudes between +55° and −90°
Best visible at 21:00 (9 p.m.) during the month of October

Piscis Austrinus (IPA: /ˈpʌɪsɪs ˈɒstrinəs/) or Piscis Australis (IPA: /ˌɒsˈtrɑːlis/, Latin: southern fish) was one of the 48 constellations listed by Ptolemy, and is also one of the 88 modern constellations. Its only bright star is Fomalhaut.

Prior to the twentieth century, the constellation was also known as Piscis Notius, a name used to distinguish it from Pisces and the later introduced Piscis Volans (the flying fish).

It is thought that originally Piscis Austrinus was the only constellation representing a fish, Pisces becoming fish only later.














The 88 modern Constellations
Andromeda • Antlia • Apus • Aquarius • Aquila • Ara • Aries • Auriga • Boötes • Caelum • Camelopardalis • Cancer • Canes Venatici • Canis Major • Canis Minor • Capricornus • Carina • Cassiopeia • Centaurus • Cepheus • Cetus • Chamaeleon • Circinus • Columba • Coma Berenices • Corona Australis • Corona Borealis • Corvus • Crater • Crux • Cygnus • Delphinus • Dorado • Draco • Equuleus • Eridanus • Fornax • Gemini • Grus • Hercules • Horologium • Hydra • Hydrus • Indus • Lacerta • Leo • Leo Minor • Lepus • Libra • Lupus • Lynx • Lyra • Mensa • Microscopium • Monoceros • Musca • Norma • Octans • Ophiuchus • Orion • Pavo • Pegasus • Perseus • Phoenix • Pictor • Pisces • Piscis Austrinus • Puppis • Pyxis • Reticulum • Sagitta • Sagittarius • Scorpius • Sculptor • Scutum • Serpens • Sextans • Taurus • Telescopium • Triangulum • Triangulum Australe • Tucana • Ursa Major • Ursa Minor • Vela • Virgo • Volans • Vulpecula
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