Of a sort, if you consider that they are the Gemini stars; thought to be visible half a year above, and spending half a year below in Hades.
Castor and Pollux
The Gemini are Pollux and Castor. They are the older twin brothers of Helen of Troy.
Pollux and Castor were gods that represented death and life/immortality.
Castor is brother of Polydeuces (Pollux)
Castor
Castor and Pollux are twin brothers from Greek and Roman mythology, known as the Dioscuri. They were considered the protectors of sailors and were associated with the constellation Gemini. Castor was mortal while Pollux was immortal, and they were said to have been inseparable in their adventures.
In Greek and Roman mythology, Castor and Pollux (who was also called Polydeuces), were twin brothers who were both the sons of Leda, but Castor was the mortal son of Tyndareus and Pollux was the son of Zeus. Yes, twin sons with different fathers.
Castor and Pollux make up the heads of Gemini, the Twins.
Castor and Pollux (or Polydeukes in Greek).
Castor and Pollux are two prominent stars in the constellation Gemini. In Greek mythology, they are known as the twin brothers, sons of Leda. Gemini is one of the twelve zodiac constellations, representing the twins Castor and Pollux.
Gemini is a constellation which represents twins named Castor and Pollux. Castor was mortal and Pollux was immortal. When Castor died, Pollux asked his father Zeus to let him share his immortality with Castor to become the constellation known as Gemini.--from Wikipedia.org
Gemini originates from the Latin word which means 'twins'. The constellation is related to the mythical Greek twin gods Castor and Pollux.