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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]
Proxima Centauri c is a candidate super-Earth or gas dwarf about 7 M E orbiting at roughly 1.5 astronomical units (220,000,000 km) every 1,900 days (5.2 yr). [81] If Proxima Centauri b were the star's Earth, Proxima Centauri c would be equivalent to Neptune.
Proxima Centauri c is a super-Earth or mini-Neptune about 7 times as massive as Earth, orbiting at roughly 1.49 AU (223 million km; 139 million mi) every 1,928 days (5.28 yr). [3] Due to its large mass and its distance from Proxima Centauri, the exoplanet is uninhabitable and too cold for liquid water to exist on the surface, with an ...
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 ...
The Earth-sized planet Proxima Centauri b is within the Alpha Centauri system's habitable zone. Ideally, the Breakthrough Starshot would aim its spacecraft within one astronomical unit (150 million kilometers or 93 million miles) of that world. From this distance, a craft's cameras could capture an image of high enough resolution to resolve ...
Proxima Centauri b: Proxima Centauri: 4.25 light-years Proxima Centauri b is the closest potentially habitable exoplanet known. As Proxima Centauri is the closest star to the Sun (and will stay so for the next 25 000 years), this is an absolute record. Most distant directly visible CT Chamaeleontis b: CT Chamaeleontis: 622 light-years [1]
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Guillem Anglada-Escudé (born 1979), is a Spanish astronomer. [1] [2] In 2016, he led a team of astronomers under the Pale Red Dot campaign, [3] which resulted in the confirmation of the existence of Proxima Centauri b, the closest potentially habitable extrasolar planet to Earth, followed by the publication of a peer-reviewed article in Nature.