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Próxima Centauri b, Próxima b o Alfa Centauri Cb 5 6 es un exoplaneta que orbita dentro de la zona habitable de la estrella enana roja Próxima Centauri, la estrella más cercana al Sol. Está situado aproximadamente a 4,23 años luz (1,3 pársecs o 4,014 × 1013 km) de la Tierra en la constelación de Centaurus.
13 de jun. de 2023 · Watch a stunning visualization of the nearest Sun-like stars to our solar system, Alpha Centauri A and B, and their companion Proxima Centauri. Learn about their properties, orbits, and planets in this 3-minute animation.
Proxima Centauri b is a super Earth exoplanet that orbits an M-type star. Its mass is 1.07 Earths, it takes 11.2 days to complete one orbit of its star, and is 0.04856 AU from its star. Its discovery was announced in 2016.
25 de ago. de 2016 · A diferencia del Alfa Centauri b, descubierto en 2012 como un planeta similar a la Tierra pero cuya existencia fue rebatida en 2015, los "signos de vida" de este planeta son más certeros.
Alfa Centauri Bb es un presunto exoplaneta que orbita la estrella Alfa Centauri B del sistema estelar triple Alfa Centauri, en la constelación austral (sur) de Centaurus, ubicado a 4,37 años luz de la Tierra, aproximadamente 41,3 billones de kilómetros.
29 de ago. de 2016 · Compared to the Sun, Alpha Centauri A is of the same stellar type G2, and slightly bigger, while Alpha Centauri B, a K1-type star, is slightly smaller. They orbit a common centre of gravity once every 80 years, with a minimum distance of about 11 times the distance between the Earth and the Sun.
17 de oct. de 2012 · It also exhibits low stellar activity, similar to the solar activity level, usually associated with a small perturbing contribution of intrinsic stellar activity to the measured radial velocities....
