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Proxima Centauri is a red dwarf star with a mass about 12.5% of the Sun's mass (M ☉), and average density about 33 times that of the Sun. Because of Proxima Centauri's proximity to Earth, its angular diameter can be measured directly. Its actual diameter is about one-seventh (14%) the diameter of the Sun.
Proxima Centauri b is the closest exoplanet to Earth, [19] at a distance of about 4.2 ly (1.3 parsecs). [4] 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. [20] As of 2021, it is unclear whether it has an eccentricity [e] [23] but Proxima Centauri b is unlikely to have any obliquity. [24]
The nearest star and planetary system to the Sun, at a distance of 4.24 ly (1.30 pc), orbiting around Alpha Centauri AB System, the nearest star system to the Sun. Age: 4.85 Gyr. [166] Has a confirmed planet, Proxima Centauri b, [167] a disputed planet, Proxima Centauri c, [168] and a unconfirmed planet, Proxima Centauri d. Reported for reference.
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 planet, dubbed Proxima b because it orbits Proxima Centauri, is thought to be a rocky and slightly more massive than Earth -- but that's not all. Scientists discover Earth-like planet orbiting ...
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 ...
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Compared to the Rudolph stories, they are not unique and are not avoided by other reindeer. The red nose results from many blood vessels in the nostrils of these reindeer. It’s nothing special ...