Traduit par IA (Opus 5.5) à partir de la fiche anglaise. Les nombres, noms et sources sont inchangés.

Étoile avec 5 planètes connues

Kepler-186

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Kepler-186, une étoile de type M1, possède 5 planètes confirmées.

Mesuré

Distance: environ 579 années-lumière
Type spectral de l'étoile: M1
Planètes confirmées: 5

Distance au Soleil

À propos 579 années-lumière. Pour la traverser :

Lumière579 ans
Vitesse de Voyager 110.3 millions d’années
Roule à 100 km/h6.25 milliards d'années

Voyager 1 à la vitesse à laquelle elle s'est éloignée au cours de l'année jusqu'à 2026-10-25 (JPL Horizons). En voiture : sans arrêt, sans jamais refaire le plein.

Faits

Kepler-186 e a une température d'équilibre comprise entre −50 et +50 °C.

Méthode de découverte

Première planète découverte en 2014, par transit (NASA Exoplanet Archive).

Ses planètes

Kepler-186 d — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 13 days; about 110 °C, hotter than boiling water; found in 2014 by transit.
Kepler-186 f — 1.2 times Earth's width, about Earth-sized — probably rocky; its year lasts 130 days; about −96 °C, below freezing; found in 2014 by transit.
Kepler-186 e — 1.3 times Earth's width, about Earth-sized — probably rocky; its year lasts 22 days; about 46 °C, between freezing and boiling; found in 2014 by transit.
Kepler-186 b — 1.1 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; about 300 °C, hotter than boiling water; found in 2014 by transit.
Kepler-186 c — 1.3 times Earth's width, about Earth-sized — probably rocky; its year lasts 7 days; about 190 °C, hotter than boiling water; found in 2014 by transit.

The NASA Exoplanet Archive's page

Source

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.

Chaque catalogue utilisé par Ouranos est cité dans la page des crédits.

Distance au Soleil

À propos 579 années-lumière. Pour la traverser :

Lumière579 ans

Vitesse de Voyager 110.3 millions d’années

Roule à 100 km/h6.25 milliards d'années

Voyager 1 à la vitesse à laquelle elle s'est éloignée au cours de l'année jusqu'à 2026-10-25 (JPL Horizons). En voiture : sans arrêt, sans jamais refaire le plein.

Ses planètes

Kepler-186 d — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 13 days; about 110 °C, hotter than boiling water; found in 2014 by transit.

Kepler-186 f — 1.2 times Earth's width, about Earth-sized — probably rocky; its year lasts 130 days; about −96 °C, below freezing; found in 2014 by transit.

Kepler-186 e — 1.3 times Earth's width, about Earth-sized — probably rocky; its year lasts 22 days; about 46 °C, between freezing and boiling; found in 2014 by transit.

Kepler-186 b — 1.1 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; about 300 °C, hotter than boiling water; found in 2014 by transit.

Kepler-186 c — 1.3 times Earth's width, about Earth-sized — probably rocky; its year lasts 7 days; about 190 °C, hotter than boiling water; found in 2014 by transit.

Source

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.