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Proxima Centauri is a member of the Alpha Centauri star system, being identified as component Alpha Centauri C, and is 2.18° to the southwest of the Alpha Centauri AB pair. It is currently 12,950 AU (0.2 ly ) from AB, which it orbits with a period of about 550,000 years.
Proxima Centauri b is the closest exoplanet to Earth, [20] at a distance of about 4.2 ly (1.3 parsecs). [5] It orbits Proxima Centauri every 11.186 Earth days at a distance of about 0.049 AU, [1] over 20 times closer to Proxima Centauri than Earth is to the Sun. [21] As of 2021, it is unclear whether it has an eccentricity [e] [24] but Proxima Centauri b is unlikely to have any obliquity. [25]
The Alpha Centauri star system is the closest star system to the Sun. List of nearest M-type stars ... Proxima Centauri: 4.24 [1] M5.5Ve [1] 0.1542 ± 0.0045 [2]
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.
Proxima Centauri (Alpha Centauri C) 107,277 Nearest star and nearest stellar system to the Sun. Has one confirmed potentially habitable exoplanet, one unconfirmed exoplanet and one disputed exoplanet [121] Luyten 726-8 B (UV Ceti) 110,615 The archetypal type of the flare stars, and the eight-nearest star system to the Solar System. [122] GL ...
The closest star to Earth, Proxima Centauri (PC), is still about 8000 times further away from us than Pluto. Propelling a probe to PC will require a much higher cruising speed than we can ...
Proxima d is a sub-Earth at least one-quarter of the mass of Earth (or twice the mass of Mars), orbiting at roughly 0.029 AU (4.3 million km; 2.7 million mi) every 5.1 days. [4] It is the least massive and innermost known planet of the Proxima Centauri system.
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