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 2013, by transit (NASA Exoplanet Archive).
Its planets
KOI-94 d — 11 times Earth's width, a giant, Jupiter-sized or more; its year lasts 22 days; about 530 °C, hotter than boiling water; found in 2013 by transit.
KOI-94 b — 1.7 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 4 days; about 1,200 °C, hot enough to melt rock; found in 2013 by transit.
KOI-94 c — 4.3 times Earth's width, Neptune-sized; its year lasts 10 days; about 740 °C, hotter than boiling water; found in 2013 by transit.
KOI-94 e — 6.6 times Earth's width, Neptune-sized; its year lasts 54 days; about 310 °C, hotter than boiling water; found in 2013 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.