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The closest system is Alpha Centauri, with Proxima Centauri as the closest star in that system, at 4.2465 light-years from Earth. The brightest, most massive and most luminous object among those 131 is Sirius A, which is also the brightest star in Earth's night sky; its white dwarf companion Sirius B is the hottest object among them.
Beyond the Sun, there are ten close neighboring star systems that contain at least 15 stars...and possibly a few planets.
Alpha Centauri is a star system with components 4.2 to 4.4 light-years from Earth and comprises three stars. It is the closest star system to the solar system, and one of its stars is the...
Proxima Centauri is the nearest star to Earth after the Sun, located 4.25 light-years away in the southern constellation of Centaurus. This object was discovered in 1915 by Robert Innes . It is a small, low-mass star , too faint to be seen with the naked eye , with an apparent magnitude of 11.13.
Alpha Centauri consists of three known stars (including Proxima). Of the three, Proxima is closest, at 4.2 light-years away. Alpha Centauri appears as the 3rd-brightest star in Earth’s sky. But...
Though not visible to the naked eye, Proxima Centauri is the closest star to the Sun at a distance of 4.24 ly (1.30 pc), slightly closer than α Centauri AB. Currently, the distance between Proxima Centauri and α Centauri AB is about 13,000 AU (0.21 ly), [17] equivalent to about 430 times the radius of Neptune's orbit.
While our closest star is the sun that we orbit in our little corner of the cosmos, we can peer out to see what stellar neighbors live nearby. The nearest stars to Earth are three stars that...
Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.
Alpha Centauri, triple star system that contains Proxima Centauri, the closest star to the Sun, about 4.2 light-years distant. The system is the third brightest star in the sky. The nearest extrasolar planets are the three planets that orbit Proxima Centauri.
The closest star to Earth is Proxima Centauri (Alpha Centauri C), a red dwarf located only 4.2465 light-years away. Proxima is the faintest and smallest component of the Alpha Centauri system, which also includes Rigil Kentaurus (Alpha Centauri A) and Toliman (Alpha Centauri B).