Voyager 1 alla velocità con cui si è allontanata nell'anno fino al 2026-10-25 (JPL Horizons). In auto: senza sosta, senza mai fare rifornimento.
Come è stato scoperto
Primo pianeta scoperto nel 2021 con il transito (NASA Exoplanet Archive).
I suoi pianeti
Kepler-1869 b — 1.1 times Earth's width, about Earth-sized — probably rocky; its year lasts 8 days; about 590 °C, hotter than boiling water; found in 2021 by transit.
Kepler-1869 c — 0.7 times Earth's width, smaller than the Earth; its year lasts 41 hours; about 1,200 °C, hot enough to melt rock; 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.