Four planets smaller than Earth confirmed orbiting the second closest star to the solar system

13. 3. 2025

Four planets smaller than Earth confirmed orbiting the second closest star to the solar system

Star system: Barnard star | Distance from the Sun: 6 light years

Barnard's Star is now one of the most compact low-mass planetary systems known. Barnard's Star is a small red dwarf only 6 light years away from the Solar System. One confirmed planet and two candidates orbiting the star were already known. New observations now confirm the three objects and add a new one.

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Stars Exoplanets

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Four sub-Earth planets orbiting Barnard's Star from MAROON-X and ESPRESSO external link

Stars mentioned

Barnard star

M4 V, Red dwarf

mass: 0.14 M☉

radius: 0.3 R☉

distance: 6 ly

stars in the system: 1

exoplanets: 4

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