Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Facts
TOI-1266 d has an equilibrium temperature between −50 and +50 °C.
How it was found
First planet found in 2020, by transit and transit timing variations (NASA Exoplanet Archive).
Its planets
TOI-1266 b — 2.5 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 11 days; about 140 °C, hotter than boiling water; found in 2020 by transit.
TOI-1266 d — 1.7 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 33 days; about 15 °C, between freezing and boiling; found in 2025 by transit timing variations.
TOI-1266 c — 2 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 19 days; about 73 °C, between freezing and boiling; found in 2020 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.