Alpha Centauri (the brightest star in the constellation Centaurus) is the closest star to earth, and is actually a double star system - when it's small companion star is on "our side" of Alpha C, it is actually closest. The system is about 4.3 light years away. Sirius is the brightest star in the night sky, a white giant, and is about 9 light years away.
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Alpha Centauri is the closest star system to the Sun, consisting of three stars - Alpha Centauri A, Alpha Centauri B, and Proxima Centauri. Sirius is the brightest star in the night sky and is located in the constellation Canis Major. It is a binary star system, composed of Sirius A and Sirius B.
They are stars.
Alpha Centauri is the brightest star in the southern constellation of Centaurus and the third brightest in our visible night sky.
Sirius is the brightest star in our visible night sky and is in the Canis Major constellation.
Operation Alpha Centauri happened in 1986.
Alpha Centauri A and Alpha Centauri B form a binary star system, while Proxima Centauri is a red dwarf star that is located further away from the binary system. Together, these three stars make up the Alpha Centauri system, which is the closest star system to the Sun.
The closest star system to our Sun is Alpha Centauri, which consists of three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri. Proxima Centauri is the closest to the Sun at a distance of about 4.24 light-years.
Sid Meier's Alpha Centauri happened in 1999.
Polaris (the North star - Alpha Ursae Minoris) is a triple star system, but appears to us as a single star. Alpha Centauri is also another triple star system. And there are many more.