"It's about seven light-years away," Guinan said.
This Super-Earth has mass at least 3.2 times that of Earth, and completes a revolution around the star of Barnard in 233 days.
Its mass exceeds the earth approximately 3.2 times; the surface temperature Barnard's Star b – approximately -170 degrees Celsius: "makes the planet not a very good candidate to look for extraterrestrial life.
After 20 years of careful scholarly observation around one of Earth's closest neighboring stars, scientists now have reason to believe that there may be what has been described as a "super-Earth" just six light years from our planet.
In a historic discovery, a global team of astronomers led by Ignasi Ribas of the Institute of Space Studies of Catalonia (IEEC) and the Institute of Space Sciences (IEEC-CSIC) found a candidate planet orbiting the star of Barnard. Subtle changes of data – the use of existing scientific instruments can be recorded with great precision.
In the past, there have been other efforts to identify a planet that is in orbit of Barnard's star, but the trial has resulted in flaws.
Despite its proximity to Barnard's Star (0.4 times the distance between Earth and Sun), the exoplanet receives little energy from its faded host: only 2% of what the Sun supplies to our Earth.
This advance, announced in an article published by the journal Nature, is part of the Red Dots and CARMENES projects, which previously helped to discover Proxima Centauri.
Exoplanets so small and so far from their parent star were not discovered before using the radial velocity technique.
But since Barnard's Star is a red dwarf, a small, refreshing star, probably about twice the age of the Sun, produces relatively little light, making it difficult to identify any body in its orbit. It is the single closest star to our own solar system.
Flashback: The exoplanet is the second closest known exoplanet to Earth, according to CNN. "Follow-up observations are already under way in different observatories around the world." These oscillations affect the light coming from the star.
It may be cold, inhospitable and almost invisible, but the new planet has one thing to do: it's very close.
"Fortunately, our long-running Keck planet search program gave us the years we needed to collect enough accurate radial velocity data with HIRES to begin to sense the presence of a planet."