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Hace 3 días · Alpha Centauri B, also known as Toliman, is the secondary star of the binary system. It is a main-sequence star of spectral type K1-V, making it more an orange colour than Alpha Centauri A; it has around 90% of the mass of the Sun and a 14% smaller diameter.
15 de may. de 2024 · La estrella más cercana a nuestro Sol es Proxima Centauri, también conocida como Alpha Centauri C. Su nombre en latín se traduce como «más cercano a Centauro», lo que refleja con precisión su posición dentro de la constelación de Centauro.
15 de may. de 2024 · Proxima Centauri, a tiny red star, can only be observed through high-powered telescopes. Within this star system, there are at least two planets that resemble Earth in size: Alpha Centauri Bb, with a mass about 113% that of Earth, orbits Alpha Centauri B for a period of 3.236 days.
Hace 1 día · The Alpha Centauri star system, being the closest to the Sun, has garnered significant attention with the discovery of Proxima Centauri b. This article thoro...
Hace 5 días · Proxima Centauri b, or Alpha Centauri Cb, orbits the star at a distance of roughly 0.05 AU (7.5 million km) with an orbital period of approximately 11.2 Earth days. Its estimated mass is at least 1.17 times that of the Earth.
Hace 3 días · Abstract. The Alpha Centauri system has two close stars Alpha and Beta (A & B) and one much further away: Proxima Centauri. All three stars are co-moving with similar chemistry, which implies they are bound, but the fast orbit of Proxima implies it is gravitationally unbound given the visible mass of A and B.
Hace 5 días · There are also giant K-type stars, which range from hypergiants like RW Cephei, to giants and supergiants, such as Arcturus, whereas orange dwarfs, like Alpha Centauri B, are main-sequence stars. They have extremely weak hydrogen lines, if those are present at all, and mostly neutral metals ( Mn I, Fe I, Si I).
