Alpha Muscae
Alpha Muscae (α Muscae, α Mus) is a star in the southern circumpolar constellation of Musca. With an apparent visual magnitude of +2.7, it is the brightest star in the constellation. The distance to this star has been determined using parallax measurements, giving an estimate of about from Earth.
Castor (star)
Castor, also designated α Geminorum (Latinised to Alpha Geminorum, abbreviated Alpha Gem, α Gem) is the second-brightest object in the constellation of Gemini and one of the brightest stars in the night sky. It appears singular to the naked eye, but it is actually a sextuple star system organized into three binary pairs made up of the stars Castor Aa, Castor Ab, Castor Ba, Castor Bb, Castor Ca, and Castor Cb. Although it has the Bayer designation α (alpha), it is fainter than β (beta) Geminorum, Pollux.