Alpha Polaris happened in 2011.
Alpha Polaris was created on 2011-06-24.
Antares and Betelgeuse are supergiant stars, while Polaris is not. Alpha Centauri is a binary star system consisting of three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri.
Polaris by far. It has a diameter of 75 times the diameter of the Sun. Alpha Cen B has a diameter of 1.7 solar diameters.
Polaris SnoCross happened in 2000.
Polaris is a multiple star system - comprising of at least 5 stars. The main star, Alpha Ursae Minoris has a temperature of about 7,200oK
Pole Star, alpha Ursae Minoris, North Star.
Polaris is a multiple star, comprising three stars. The main star (Alpha Ursa Minor Aa) is a yellow supergiant with the mass of 4.5 times that of the sun. A smaller companion, Alpha UMi Ab has 1.26 solar mass, while Alpha UMi B is 1.39 solar masses.
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.
Alpha Protocol happened in 2010.
Metamorphosis Alpha happened in 1976.
Alpha Mission happened in 1985.
Piper Alpha happened in 1988.