HD 22946, an F7/F8V star, has 3 confirmed planets.
Measured
Distance
about 205 light-years
Star's spectral type
F7/F8V
Confirmed planets
3
How far, from the Sun
About 205 light-years. To cross it:
Light205 years
Voyager 1's speed3.64 million years
Driving at 100 km/h2.21 billion 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 2022, by transit (NASA Exoplanet Archive).
Its planets
TOI-411 c — 2.3 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 10 days; about 660 °C, hotter than boiling water; found in 2022 by transit.
TOI-411 b — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; about 970 °C, hotter than boiling water; found in 2022 by transit.
HD 22946 d — 2.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 47 days; about 270 °C, hotter than boiling water; found in 2023 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.