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-444

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Kepler-444, une étoile de type K, possède 5 planètes confirmées.

Mesuré

Distance: environ 119 années-lumière
Type spectral de l'étoile: K
Planètes confirmées: 5

Distance au Soleil

À propos 119 années-lumière. Pour la traverser :

Lumière119 ans
Vitesse de Voyager 12.11 millions d’années
Roule à 100 km/h1.28 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.

Méthode de découverte

Première planète découverte en 2015, par transit (NASA Exoplanet Archive).

Ses planètes

Kepler-444 d — 0.5 times Earth's width, smaller than the Earth; its year lasts 6 days; about 510 °C, hotter than boiling water; found in 2015 by transit.
Kepler-444 e — 0.6 times Earth's width, smaller than the Earth; its year lasts 8 days; about 450 °C, hotter than boiling water; found in 2015 by transit.
Kepler-444 c — 0.5 times Earth's width, smaller than the Earth; its year lasts 5 days; about 600 °C, hotter than boiling water; found in 2015 by transit.
Kepler-444 b — 0.4 times Earth's width, smaller than the Earth; its year lasts 4 days; about 670 °C, hotter than boiling water; found in 2015 by transit.
Kepler-444 f — 0.7 times Earth's width, smaller than the Earth; its year lasts 10 days; about 400 °C, hotter than boiling water; found in 2015 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 119 années-lumière. Pour la traverser :

Lumière119 ans

Vitesse de Voyager 12.11 millions d’années

Roule à 100 km/h1.28 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-444 d — 0.5 times Earth's width, smaller than the Earth; its year lasts 6 days; about 510 °C, hotter than boiling water; found in 2015 by transit.

Kepler-444 e — 0.6 times Earth's width, smaller than the Earth; its year lasts 8 days; about 450 °C, hotter than boiling water; found in 2015 by transit.

Kepler-444 c — 0.5 times Earth's width, smaller than the Earth; its year lasts 5 days; about 600 °C, hotter than boiling water; found in 2015 by transit.

Kepler-444 b — 0.4 times Earth's width, smaller than the Earth; its year lasts 4 days; about 670 °C, hotter than boiling water; found in 2015 by transit.

Kepler-444 f — 0.7 times Earth's width, smaller than the Earth; its year lasts 10 days; about 400 °C, hotter than boiling water; found in 2015 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.