Piscis Austrinus
Constellation|name = Piscis austrinus |abbreviation = PsA |genitive = Piscis Austrini |symbology = the
Southern
Fish|RA = 22 |dec= −30 |areatotal = 245 |arearank = 60th |numberstars = 1 |starname =
Fomalhaut (α Piscis Austrini) |starmagnitude = 1.16 |meteorshowers = *
? |bordering =
*
Capricornus*
Microscopium*
Grus*
Sculptor*
Aquarius |latmax = 55 |latmin = 90 |month = October |notes=}}
Piscis Austrinus or
Piscis Australis (both of which are
Latin for
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 thought of as a fish,
Pisces becoming considered a fish only later.
:Stars with proper names:
* (24/α PsA) 1.17
Fomalhaut [
Fom al-Haut] or
(Os) Piscis Meridiana [
Os Piscis Meridionalis] or
Os Piscis Notii or
Difda al Auwel – nearby; has a circumstellar disk:*: < فم الحوت
Fum al-Hūt Mouth of the fish/whale:*: <
ōs piscis merīdiāna The mouth of the southern fish:*: < الضفدع الأول
Al-Dhifda` al-Awwal The first frog
Stars with Bayer designations:::
17/β PsA 4.29;
22/γ PsA 4.46;
23/δ PsA 4.20;
18/ε PsA 4.18;
ζ PsA 6.43;
12/η PsA 5.43;
10/θ PsA 5.02;
9/ι PsA 4.35;
16/λ PsA 5.45;
14/μ PsA 4.50;
Pi PsA 5.12;
15/τ PsA 4.94;
υ PsA 4.99:Stars with Flamsteed designation:::
2 PsA 5.20;
3 PsA 5.41;
5 PsA 6.52;
6 PsA 5.97;
7 PsA 6.10;
8 PsA 5.73;
13 PsA 6.45;
19 PsA 6.12;
21 PsA 5.99:Other notable stars::*
Lacaille 9352 7.34 – nearby:*
TW PsA 6.48 – flare star; nearby:*
HD 216770 8.10 – has a planet
