Ross 508, an M4.5 V star, has one confirmed planet.
Measured
Distance
about 36.6 light-years
Star's spectral type
M4.5 V
Confirmed planets
1
How far, from the Sun
About 36.6 light-years. To cross it:
Light36.6 years
Voyager 1's speed650,000 years
Driving at 100 km/h395 million years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Facts
Ross 508 b has an equilibrium temperature between −50 and +50 °C.
How it was found
First planet found in 2022, by radial velocity (NASA Exoplanet Archive).
Its planets
Ross 508 b — 1.8 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 11 days; about 21 °C, between freezing and boiling; found in 2022 by radial velocity.
NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.
This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.