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Pisces, the Fishes

Psc

Piscium

Sky Chart and Artist Rendering of Pisces

Origin:
Pisces is the twelfth constellation in the ancient zodiac and the current location of the Vernal Equinox.  The Vernal Equinox is point where the celestial equator and ecliptic cross and the location of the Sun on the first day of spring.  It is also the day when the lengths of the day and night are equal, which falls on or near March 21. It is a relatively large, ancient constellation of mostly faint stars.

Besides the Greeks and Romans, Pisces has been known as the "Fish" (or "Fishes") by the Babylonians, Persians, Turks, Arabs, and Syrians. The Chinese called the star group at various times the Dark Warrior, the Northern Emperor, and the Pig.  After western influence into China, the constellation became known there too as the Two Fishes.

Information:
Pisces is a fall/winter constellation which runs generally east-west.  As such, the time of southern transit is a little difficult to define.  However, the head (known as the "Circlet") of the southern-most fish culminates at 9 pm on October 28 and the "knot" in the cords that hold the two fishes together transits at 9 pm on December 3. The "Circlet" is easy to find south of the Great Square of Pegasus but the other stars are more challenging, especially in urban skies.

Pisces is generally described as two fishes with ribbons or cords tied to their tails with the other ends of the cords tied together in a knot at Alpha-Piscium (the point where the northern-most fish and southern-most fish meet). Pisces is the galaxy hunter's jewel box.  In fact, the only deep sky objects in Pisces are galaxies. All require at least a 20-cm (8") telescope.

Mythology:
According to Greek myth, there was a horrific and evil god Typhon (hence the storm called the typhoon) who was determined to dethrone Zeus and the other gods of Olympus.  So powerful was the evil god that he caused the immortals to flee into Egypt in exile. Zeus alone remained to fight and defeat Typhon.  Aphrodite (Venus) and her son Eros (Cupid) were walking along the banks of the Euphrates (perhaps Eridanus) when Typhon arrived. Unable to escape with the other gods, they dived into the river where they took the form of fishes and escaped. Despite their successful metamorphosis, we know from the constellation Capricornus (the Sea Goat) the hazards of attempting to escape by leaping into the river.