Pisces () (,
pis'eez;
Ikhthyes) is the twelfth
astrological sign in the
Zodiac, originating from the
Pisces constellation. It spans the 330° to 360° of the zodiac, between 332.75° and 360° of
celestial longitude. Under the tropical zodiac the
sun transits this area on average between February 19 and March 20, and under the sidereal zodiac, the sun transits this area between approximately March 13 and April 13. The symbol of the fish is derived from the
ichthyocentaurs, who aided
Aphrodite when she was born from the sea.