Kepler-446, una estrella M4, tiene 3 planetas confirmados.
Medido
Distancia
unos 314 años luz
Tipo espectral de la estrella
M4
Planetas confirmados
3
Distancia al Sol
Acerca de 314 años luz. Para cruzarlo:
Luz314 años
Velocidad de la Voyager 15.58 millones de años
Conduciendo a 100 km/h3.39 mil millones de años
La Voyager 1 a la velocidad con la que se alejó durante el año hasta 2026-10-25 (JPL Horizons). Conduciendo: sin parar, sin repostar nunca.
Cómo se descubrió
Primer planeta descubierto en 2015, por tránsito (NASA Exoplanet Archive).
Sus planetas
Kepler-446 b — 1.5 times Earth's width, about Earth-sized — probably rocky; its year lasts 38 hours; about 380 °C, hotter than boiling water; found in 2015 by transit.
Kepler-446 d — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 5 days; about 160 °C, hotter than boiling water; found in 2015 by transit.
Kepler-446 c — 1.1 times Earth's width, about Earth-sized — probably rocky; its year lasts 3 days; about 250 °C, hotter than boiling water; found in 2015 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.