Two super-earths orbit one cold M-dwarf HD 260655, and the entire system is only 10 parsecs away, or about 33 light-years from us.
The first planet, HD 260655 b, orbits the star in 2.8 days and is about twice as massive as Earth. The second planet, HD 260655 c, is further away and orbits the star in 5.7 days, it is three times more massive than Earth.
Despite the fact that the dwarf star is much colder than our Sun, the planets are still very close to it, so they are hot, which means they are outside the habitable zone. According to experts, the temperature on the inner planet is 437 °C, on the outer – about 287 °C.
Therefore, liquid water is unlikely to exist on the surfaces of these planets, respectively, and life on these planets. Although the planets are uninhabitable, their relative proximity to the niche Earth and the brightness of the cold M-dwarf HD 260655, will allow scientists to thoroughly study the atmosphere of these planets.
