Azụ̀ Austrinus

Piscis Austrinus bụ ọrụ na ndị mmadụ mbara igwe .  Aha bụ Latin maka "azụ nrịda", n'ụzọ dị iche na nnukwu m ike Pisces, nke na-amị anya azụ.  Tupu tupu afọ nke 20, a ndọ ya dị ka Piscis Notius .  Piscis Austrinus bụ n'ime m ike 48 nke onye na-egosi mbara igwe nke mbụ afụ nke abụọ Ptolemy depụtara, ọ bụkwa otu n'ime ike 88 nke oge a.  Kpakpando nke mkpọ nke oge a Grus kpụrụ "ọdụ" nke Piscis Austrinus.  Na 1597 (ma ọ bụ 1598), Petrus Plancius weputara ike dị iche iche iche iche ya aha crane.

Ọ bụ ikike ikike na-esighị ike, ndị mmadụ otu ndị na-eso ndị ọzọ ogo nke anọ: Fomalhaut, nke bụ 1st magnitude na ihe nke 18 na-emekarị na mbara igwe .  Fomalhaut bụ diski mkpuchi gbara ya gburugburu, ma ọnọdụ anya na-akwado mbara ala.  Ihe ndị ọzọ dị n'ime mgbaka nke mkpọ mkpọ Lacaille 9352, mkpegharị dwarf na-acha uhie na- ọdịdị na mbara igwe igwe (n'agbanyeghị na ọ ka na-agwụ ike iji anya gbapụta);  na PKS 2155-304, ihe BL Lacertae bụ otu n'ime ihe na-akpa na mbara igwe.
áká_èkpè|thumb|350x350px| Enwere ike ịhụ ka ebipụrụ Piscis Austrinus na ala nke Urania's mirror '1825 ngosi nke Aquarius .  N'okwu nke akwụkwọ Ballon Aerostatique nke ochie .
. Pisces Austrinus sitere na ike ike nke a mara nke ọma dị ka Azụ (MUL.KU).  [1] [2] Prọfesọ na-ahụ maka mbara igwe Bradley Schaefer atụwo aro na ọ ga- መሪ na ndị na-ekiri n'oge ochie ga-ahụhụ na ndịda Mu Piscis Austrini iji ọbụdị yiri azụ.  [3] Tinyere ugo Aquila na crow Corvus na ụgbọ mmiri Hydra, Piscis Austrinus bụ ndị e webatara na ndị Gris oge ochie gburugburu 500 TOA;  mmụta na-akara oge mmụta na oge oyi, n'otu n'otu.

Na ቀለሞች ifo ndị Gris, a na-akpọ mkpọ a dị ka nnukwu azụ̀ na-egosi na ọ na-eloda mmiri nke Aquarius na-awụpụ, mkpị na-ebu mmiri.  A na-ekwu na azụ̀ nke abụọ mkpọ Pisces bụ ụmụ nke nnukwu azụ̀.  Na pasto ifo ndị Ijipt, azụ atụra ndụ chi Ijipt Isis, ya mere o na-azụ a na ụmụ ya n'imereeb dị ka ndị ማለፍ.  [1] Na apụ nke ise BC, onye Gris na-akọ ihe mere eme Ctesias dere na a Jer na azụ̀ ahụ bi n'otu ọdo mmiri dị nso na Bambyce dị na Siria ma anọ Derceto, ada Aphrodite, na n'  ihi na e debere omume a n'obi.  N’ihi nke a, azụ̀ dị ns ma ọtụtụ ndị Siria erighị ya.

Piscis Austrinus is a constellation bordered by Capricornus to the northwest, Microscopium to the southwest, Grus to the south, Sculptor to the east, and Aquarius to the north. Its recommended three-letter abbreviation, as adopted by the International Astronomical Union in 1922, is "PsA". Ptolemy called the constellation *Ichthus Notios* "Southern Fish" in his *Almagest*; this was Latinised to Piscis Notius and used by German celestial cartographers Johann Bayer and Johann Elert Bode. Bayer also called it Piscis Meridanus and Piscis Austrinus, while French astronomer Nicolas-Louis de Lacaille called it Piscis Australis. English Astronomer Royal John Flamsteed went with Piscis Austrinus, which was followed by most subsequently. The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of four segments (*illustrated in infobox*). In the equatorial coordinate system, the right ascension coordinates of these borders lie between  and , while the declination coordinates are between −24.83° and −36.46°. The whole constellation is visible to observers south of latitude 53°N.