Ross 508, located only 36.5 light-years away, is a red dwarf, much smaller and fainter than our Sun. The newly discovered planet, Ross 508 b (which is likely to be of the terrestrial or rocky type, given its size), orbits every 10.75 days: so it may appear that the planet is very close to its star, but at that distance the radiation hitting it is only 1.4 times that hit him Earth, a feature that makes it very close to the inner limit of the habitable zone. Anyway, the excellent–Earth It hosts lifeforms, at least as we know them.
Ross 508 is one of the smallest and fainter stars with a planet orbiting the planet identified thanks to the radial velocity method, also known as the Doppler method: when the star moves a little towards us, the star’s light reaches Earth It is more on the blue, while when it moves away, the light turns towards red. This indicates that future investigations using this observing technology have the potential to reveal a huge treasure trove of exoplanets orbiting faint stars.
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