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

Étoile avec 5 planètes connues

K2-384

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K2-384, une étoile M4 V, possède 5 planètes confirmées.

Mesuré

Distance: environ 270 années-lumière
Type spectral de l'étoile: M4 V
Planètes confirmées: 5

Distance au Soleil

À propos 270 années-lumière. Pour la traverser :

Lumière270 ans
Vitesse de Voyager 14.79 millions d’années
Roule à 100 km/h2.91 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 2022, par transit (NASA Exoplanet Archive).

Ses planètes

K2-384 c — 1.2 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; found in 2022 by transit.
K2-384 f — 2.2 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 14 days; found in 2022 by transit.
K2-384 b — 1.1 times Earth's width, about Earth-sized — probably rocky; its year lasts 2 days; found in 2022 by transit.
K2-384 d — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 7 days; found in 2022 by transit.
K2-384 e — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 10 days; found in 2022 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 270 années-lumière. Pour la traverser :

Lumière270 ans

Vitesse de Voyager 14.79 millions d’années

Roule à 100 km/h2.91 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

K2-384 c — 1.2 times Earth's width, about Earth-sized — probably rocky; its year lasts 4 days; found in 2022 by transit.

K2-384 f — 2.2 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 14 days; found in 2022 by transit.

K2-384 b — 1.1 times Earth's width, about Earth-sized — probably rocky; its year lasts 2 days; found in 2022 by transit.

K2-384 d — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 7 days; found in 2022 by transit.

K2-384 e — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 10 days; found in 2022 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.