Kepler-247, una estrella K, tiene 4 planetas confirmados.
Medido
Distancia
unos 2,165 años luz
Tipo espectral de la estrella
K
Planetas confirmados
4
Distancia al Sol
Acerca de 2,160 años luz. Para cruzarlo:
Luz2,160 años
Velocidad de la Voyager 138.5 millones de años
Conduciendo a 100 km/h23.4 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 2014, por tránsito y variaciones en el tiempo de tránsito (NASA Exoplanet Archive).
Sus planetas
Kepler-247 d — 4.5 times Earth's width, Neptune-sized; its year lasts 20 days; about 260 °C, hotter than boiling water; found in 2014 by transit.
Kepler-247 c — 4.1 times Earth's width, Neptune-sized; its year lasts 9 days; about 410 °C, hotter than boiling water; found in 2014 by transit.
KOI-884 e — 9.5 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 31 days; found in 2014 by transit timing variations.
Kepler-247 b — 1.6 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 700 °C, hotter than boiling water; found in 2014 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.