It's a close call, but Pollux is brighter. Pollux has an apparent magnitude of 1.15 whereas Castor has an apparent magnitude of 1.96.
(Note: the smaller the apparent magnitude the brighter it is)
Sirius appears brighter than Pollux because it is closer to Earth and is a more luminous star. Sirius is also a hot, blue star compared to Pollux, which is a cooler, orange giant star, further contributing to the difference in brightness.
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.
Castor and Pollux make up the heads of Gemini, the Twins.
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.
Pollux and Castor were brothers in Greek mythology known as the Dioscuri. They were twin brothers and were the sons of Zeus and Leda. Castor was mortal, while Pollux was immortal. They were skilled horsemen and were known for their bravery in battle. When Castor died, Pollux was so heartbroken that he asked Zeus to allow him to share his immortality with his brother, resulting in them both spending alternate days in the underworld and on Mount Olympus.
Castor et Pollux was created in 1737.
Helen of Troy was the sister of the twins Castor and Pollux. Their mother was Leda, and their other sister was Clytemnestra. Pollux was also immortal whereas Castor was mortal.
The wives of the Dioscuri were the Leucippides; Phoibe (who married Polydeuces/Pollux)and Hilaeira (who married Castor). Hilaeira had with Castor: Anogon/Anaxis Phoibe had with Pollux: Mnesileos/Mnasinous
Castor and Pollux
Pollux
Sirius appears brighter than Pollux because it is closer to Earth and is a more luminous star. Sirius is also a hot, blue star compared to Pollux, which is a cooler, orange giant star, further contributing to the difference in brightness.
Castor is brother of Polydeuces (Pollux)
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.
Castor and Pollux make up the heads of Gemini, the Twins.
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.
Pollux and Castor were gods that represented death and life/immortality.
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