Star with a known planet
TOI-4155
TOI-4155 has one confirmed planet.
Measured
- Distance
- about 785 light-years
- Confirmed planets
- 1
How far, from the Sun
About 785 light-years. To cross it:
- Light785 years
- Voyager 1's speed14 million years
- Driving at 100 km/h8.47 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 2025, by transit (NASA Exoplanet Archive).
Its planets
- TOI-4155 b — 3.2 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 980 °C, hotter than boiling water; found in 2025 by transit.
The NASA Exoplanet Archive's page
Where this comes from
- 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.
Every catalogue Ouranos draws is credited on the credits page.