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Gemini is one of the constellations of the zodiac and is located in the northern celestial hemisphere. It was one of the 48 constellations described by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations today. Its name is Latin for twins, and it is associated with the twins Castor and Pollux in Greek ...
α Geminorum (Latinised to Alpha Geminorum) is the star system's Bayer designation. Castor and Pollux are the two "heavenly twin" stars that give the constellation Gemini (meaning twins in Latin) its name. The name Castor refers specifically to Castor, one of the twin sons of Zeus and Leda in Greek and Roman mythology.
• Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] See also [ edit ]
It is located in the northern hemisphere, about 73 light-years from the Earth, in the constellation of Gemini. [12] It is visually close to Pollux, the brightest star in the constellation. [7] HD 63433 is predicted to approach within 7.33 light-years of the Sun in 1.33 million years. [21] That will make it one of the nearest stars to the Sun.
Mu Geminorum or μ Geminorum, formally named Tejat (/ ˈ t iː dʒ ə t /), [14] is a single star in the northern constellation of Gemini. From parallax measurements obtained during the Hipparcos mission, it is roughly 230 light-years (71 parsecs) distant from the Sun. [1] The position of the star near the ecliptic means that it is subject to ...
An asterism is an observed pattern or group of stars in the sky. Asterisms can be any identified pattern or group of stars, and therefore are a more general concept than the 88 formally defined constellations. Constellations are based on asterisms, but unlike asterisms, constellations outline and today completely divide the sky and all its ...
Epsilon Geminorum or ε Geminorum, formally named Mebsuta / m ɛ b ˈ s uː t ə /, [11] [12] is a star in the constellation of Gemini, on the outstretched right 'leg' of the twin Castor. The apparent visual magnitude of +3.06 [2] makes it one of the brighter stars in this constellation. The distance to this star is determined at 860 light ...
Iota Geminorum (ι Geminorum, ι Gem) is a solitary [9] fourth-magnitude star in the constellation Gemini. In the sky, it forms an isosceles triangle with Castor and Pollux , and is located less than a degree from the 5th magnitude stars 64 and 65 Geminorum.