LHS 1678, an M2.0 V star, has 3 confirmed planets.
Measured
Distance
about 64.8 light-years
Star's spectral type
M2.0 V
Confirmed planets
3
How far, from the Sun
About 64.8 light-years. To cross it:
Light64.8 years
Voyager 1's speed1.15 million years
Driving at 100 km/h699 million years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
How it was found
First planet found in 2021, by transit (NASA Exoplanet Archive).
Its planets
LHS 1678 b — 0.7 times Earth's width, smaller than the Earth; its year lasts 21 hours; about 560 °C, hotter than boiling water; found in 2021 by transit.
LHS 1678 c — 0.9 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; about 240 °C, hotter than boiling water; found in 2021 by transit.
LHS 1678 d — 1 times Earth's width, about Earth-sized — probably rocky; its year lasts 5 days; about 190 °C, hotter than boiling water; found in 2024 by transit.
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.