Universe Guide

Piscis Austrinus, The Southern Fish Constellation

Piscis Austrinus Constellation Star Map

Piscis Austrinus (Pronounciation:Pye-seas Ore-strin-us, Abbrev:PsA, Latin:Piscis Austrini) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Piscis Austrinus takes up 245.375 sq. degrees of the night sky which equates to 0.59% of the night sky. Piscis Austrinus is the 60th largest in terms of size in the night sky.

The constellation name means The Southern Fish . The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D. and 168 A.D.

There are 7 stars that make up the main constellation. The hipparcos satellite scanned and detailed 667 stars. There are 26 stars that can be seen with the naked eye in the constellation on a very clear night sky.

Piscis Austrinus is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Piscis Austrinus is a southern hemispheric constellation which means it can't be seen easily or at all from the northern hemisphere.

There are 7 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Piscis Austrinus.

There are no deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.

The image at the top right of this page was generated using Night Vision, a free to use and download application by Brian Simspon.

Distance to Piscis Austrinus

You can't just go to one location and arrive at the constellation because the constellation is made up of stars at different locations and different distances. The nearest main star in the constellation is at a distance of 25.13 light years and the furthest main star is a distance of 486.81 light years. The average distance to the main stars is 194.91 light years.

Piscis Austrinus Star Facts

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

HIP 106229, Piscis Austrinus's Furthest Star

The furthest star that is located in the constellation is HIP 106229 and it is 81540.84 light years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

21 Piscis Austrini, Piscis Austrinus's Dimmest Visible Star

The dimmest star that can be seen in Piscis Austrinus with the naked eye is 21 Piscis Austrini. The dim star has an apparent magnitude of 5.99. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan.


The bright star Fomalhaut is one of the earliest stars that scientists believe could have an orbit planet. It is a southern constellation and one that is known for its meteor shower in August albeit a not so bright one. Fomalhaut is the brightest start in the constellation and it has an exoplanet in orbit round it.

Piscis Austrinus Mythology

Piscis Austrinus is said to be the mother of Pisces. The Goddess Derecto was forced to marry a mortal by Aphrodite. After conceiving a daughter Semiramis, the spell wore off and she became a Goddess again. Derecto killed her daughter and jumped into the river therefore transforming herself into the Southern Fish.

Meteor Showers Radiating from Piscis Austrinus

There are 1 Meteor Showers that occur during the year within this constellation based on information gathered from Adam Mickiewicz University (Poland). The list below are major ones and which I have a date period for.

The Meteor Shower is known as the Piscis Austrinids.

List of Main Stars in Piscis Austrinus

The following list contains the stars that make up the constellation. For a larger list of stars in the entire constellation area, please visit the For a list of named stars, that is stars that don't start HD or HIP, please visit Piscis Austrinus Star List page.

NameBayerDistance (Lt.Yr.)Right AscensionDeclinationSpectral TypeColour
FomalhautAlpha Piscis Austrini25.1322h 57m 38.83-29d 37` 18.6A3VWhite
Beta Piscis AustriniBeta Piscis Austrini142.8022h 31m 30.29-32d 20` 45.7A1VWhite
Gamma Piscis AustriniGamma Piscis Austrini215.4322h 52m 31.56-32d 52` 31.6A0IIIWhite
Delta Piscis AustriniDelta Piscis Austrini154.1422h 55m 56.89-32d 32` 22.9G8IIIYellow
Epsilon Piscis AustriniEpsilon Piscis Austrini486.8122h 40m 39.33-27d 02` 37.0B8VBlue/White
Iota Piscis AustriniIota Piscis Austrini204.2421h 44m 56.79-33d 01` 32.0B9.5VBlue/White
Mu Piscis AustriniMu Piscis Austrini135.8422h 08m 22.95-32d 59` 18.2A2VWhite

Piscis Austrinus Facts

NamePiscis Austrinus
Is a Zodiac Sign No
Brightest StarFomalhaut
Area245.375 sq. deg.
Percentage of Night Sky0.59%
Size Position60th
Hemisphere Southern
Site Exoplanet Count7
Meteor Shower Count1
Nearest StarLacaille 9352
Nearest Star with Exoplanet(s)Fomalhaut
Brightest StarFomalhaut
Dimmest Star21 Piscis Austrini
Furthest StarHIP 106229
Bright Star Count26
Hipparcos Star Count667
Main Star Count7
Messier Deep Space Object Count0
Bordering / Neighbouring / Surrounding ConstellationsAquarius

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

List of Deep Space Objects (Galaxies, Nebulas, Supernovas, etc) in Piscis Austrinus

NameTypeDistanceDeclinationRight Ascension
NGC 7157Spiral Galaxy-25 21 01.6321 56 56m 697
NGC 7187Spiral Galaxy-32 48 11.43894744322 02 44m 4953796289
NGC 7267Barred Spiral Galaxy-33 41 38.77279515522 24 21m 8100748926
NGC 7277Spiral Galaxy-31 08 42.9622 26 10m 950

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