Castor is a visual binary star whose components, Castor A and Castor B, complete an orbit every 445 years (104 AU = 71-138 AU). The orbital plane is inclined 25º respect to the line of sight. In turn, each of the components is a spectroscopic binary: the components of Castor A are separated 0.12 AU with an orbital period of 9.21 days, while the components of Castor B, separated 0.03 AU, complete one orbit every 2.93 days (2.4 and 1.9 solar masses). The companions of these two white stars, can be red dwarfs, whose magnetic activity causes the emission of X-rays.
In addition, two other stars, are part of this sextuple system. Castor C is an eclipsing spectroscopic binary, located about 72 seconds of arc, whose components move in a circular orbit with a separation of 0.018 AU, completing one turn every 19.5 hours. The distance between Castor C and the pair Castor AB is so great (about 1000 AU) that no orbital movement has yet been observed.
Photometric observations were made in April of 1974 and May of 2003, in addition to the years 1678, 1718, 1998 and 2002.
It has a declination of +32º (oncile) and it is located at the degree 20º of Cancer (+10º of celestial latitude).
Castor was the mortal brother of the Dioscuri, twin of Pollux and brother of Helen of Troy and Clytemnestra.
Castor was famous for his ability to tame and ride horses and Pollux for his skill in hand-to-hand fighting. When Theseus and Pirítoo kidnapped its sister Helena and took it to Afidna, the Dioscuros rescued it and kidnapped in revenge the mother of Teseo, Etra. They also accompanied Jason on the Argo. During the trip, Pollux killed the Atmic king in a fair play hand fight. When Astidamia, queen of Yolco, offended Peleus, the Dioscuri helped him to devastate his country. Castor and Pollux kidnapped the daughters of Leucippus, Hilaira, and Phoebe, and married them. Therefore, Idas and Linceo, nephews of Leucipo (or rival suitors), killed Castor. Pollux, who had received the gift of the immortality of Zeus, convinced his father to grant it also to Castor. Thus, both alternated between Olympus and Hades, as gods and deceased mortals.
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| "Case Closed" (1994) |
Castor is a star whose quality reminds the planets Mercury and Saturn. It is related with an amazing ability to recognize evidence and explain to others its legal value.
"The Peacemaker" (1997)
Castor - (58534) Logos
Gosho Aoyama, autor or the manga "Case Closed" (1994), has Castor in Cancer in the ascendent of the Moon-Node Horoscope.
Bruno Huber, creator of the Huber method, has Castor in Cancer (10th Moon-Node House) in conjunction with Jupiter-Pluto, and in trine with the Moon in Pisces (2nd Moon-Node House).
Julianna Margulies, actress of the TV series "The Good Wife" (2009), has Castor in Cancer (11th Moon-Node House) in trine with Neptune in Scorpio (7th Moon-Node House).
