This is Wolf 1069b in the constellation Cygnus, which orbits a red dwarf star
A team of European astronomers have found, just 31 light-years from Earth, yet another rare rocky exoplanet with Earth-sized dimensions and conditions potentially hospitable to life. It is about for Wolf 1069b in the Cygnus constellation, which moves around a red dwarf star.
The exoplanet, which is the sixth closest ever found, bears similarities to our own planet. Its mass is estimated at only 1.3 times that of Earth, its radius at 1.08 that of Earth (so it is marginally larger) and its average temperature at minus 7 to minus 23 degrees Celsius (it is therefore icy but not excessively ). It takes almost 16 days (the length of its year) to complete one complete orbit around its star.
The researchers, led by Diana Kosakowski of Germany’s Max Planck Institute for Astronomy in Heidelberg, who made the relevant publication in the journal Astronomy & Astrophysics, made the discovery with Spain’s Calar Alto telescope as part of the Carmenes program.
The star Wolf 1069 emits less radiation than the Sun and the exoplanet receives only 65% ​​of the radiation received by the Earth from the sun. The absence of any activity or intense ultraviolet radiation on its parent star increases the chances that the exoplanet has retained much of its atmosphere, so it could have conditions friendly to the development of life. So it will be another target for future observations with more powerful telescopes (such as the ELT Extremely Large Telescope under construction in Chile), along with exoplanets of other nearby stars such as Proxima Centauri b and Trappist e.
More than 5,000 exoplanets have been confirmed so far, but only 1.5% have masses up to twice that of Earth. Even fewer – about ten – they move in the so-called “habitable” zone around their star, i.e. at a distance suitable for liquid water to exist on their surface.
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