This Planet is Approaching Us! | NASA Discovered An Alien Planet | Barnard B | Kosmoz

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This Planet is Approaching Us! | NASA Discovered An Alien Planet | Barnard B | Kosmoz


In November 2018, astronomers discovered a new super-Earth-size exoplanet orbiting the legendary Barnard’s Star. This star is the closest single star and now the second-closest star system to our own sun at only six light-years away.

Astronomers named this new-found planet - Barnard B or GJ 699. On January 10, 2019, at the 233rd meeting of the American Astronomical Society (AAS) in Seattle, Washington – astronomers from Villanova University explained that – although this world is likely cold about -170 degrees Celsius or -254 Fahrenheit – it could still have the potential to harbor primitive life.

The mass of Barnard B is just over three times that of Earth. It orbits a star named Barnard’s Star – a dim red dwarf – every 233 days, at roughly the same distance that Mercury orbits our sun.

In the Barnard’s Star system, though, this distance is near the star’s snow line, that is, the point where heat from Barnard’s star needed to keep water molecules as vapor ends.

Past the snow line, water can become ice. Barnard’s Star is about twice as old as the sun — about 9 billion years old compared to 4.6 billion years for the sun.

No other star moves faster across Earth's sky than Barnard's Star, which travels about the width of the full moon every 180 years.


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