which western astrological star sign is represented by the twins castor and pollux?
Gemini lies between Taurus to the west and Cancer to the east, with Auriga and Lynx to the north and Monoceros and Canis Minor to the south.
In classical antiquity, Cancer and not Gemini was the location of the Sun on the first day of summer (June 21). During the first century AD, axial precession shifted it into Gemini. In 1990, the location of the Sun on the first day of summer moved from Gemini into Taurus, where it will remain until the 27th century AD and then move into Aries. The Sun will move through Gemini from June 21 to July 20 through 20.
Gemini is prominent in the winter skies of the Northern Hemisphere and is visible the entire night in December-January. The easiest way to locate the constellation is to find its two brightest stars Castor and Pollux eastward from the familiar “V” shaped asterism of Taurus and the three stars of Orion’s belt. Another way is to mentally draw a line from the Pleiades star cluster located in Taurus and the brightest star in Leo, Regulus. In doing so, an imaginary line that is relatively close to the ecliptic is drawn, a line which intersects Gemini roughly at the midpoint of the constellation, just below Castor and Pollux.
In Babylonian times and during astronomy, the stars Castor and Pollux were known as the Great Twins.
The Twins were regarded as minor gods and were called Meshlamtaea and Lugalirra, meaning respectively ‘The One who has arisen from the Underworld’ and the ‘Mighty King’.
Both names can be understood as titles of Nergal, the major Babylonian god of plague and pestilence, who was king of the Underworld.
Culled from Wikipedia