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

Étoile avec 4 planètes connues

DMPP-1

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DMPP-1, une étoile F8 V, possède 4 planètes confirmées.

Mesuré

Distance: environ 204 années-lumière
Type spectral de l'étoile: F8 V
Planètes confirmées: 4

Distance au Soleil

À propos 204 années-lumière. Pour la traverser :

Lumière204 ans
Vitesse de Voyager 13.62 millions d’années
Roule à 100 km/h2.2 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 2019, par vitesse radiale (NASA Exoplanet Archive).

Ses planètes

DMPP-1 e — 1.9 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 6 days; about 1,000 °C, hot enough to melt rock; found in 2019 by radial velocity.
DMPP-1 c — 3.3 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 10 days; about 970 °C, hotter than boiling water; found in 2019 by radial velocity.
DMPP-1 b — 4.3 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 18 days; about 600 °C, hotter than boiling water; found in 2019 by radial velocity.
DMPP-1 d — 2 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 1,400 °C, hot enough to melt rock; found in 2019 by radial velocity.

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 204 années-lumière. Pour la traverser :

Lumière204 ans

Vitesse de Voyager 13.62 millions d’années

Roule à 100 km/h2.2 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

DMPP-1 e — 1.9 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 6 days; about 1,000 °C, hot enough to melt rock; found in 2019 by radial velocity.

DMPP-1 c — 3.3 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 10 days; about 970 °C, hotter than boiling water; found in 2019 by radial velocity.

DMPP-1 b — 4.3 times Earth's width (estimated from its mass, not measured), Neptune-sized; its year lasts 18 days; about 600 °C, hotter than boiling water; found in 2019 by radial velocity.

DMPP-1 d — 2 times Earth's width (estimated from its mass, not measured), a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 3 days; about 1,400 °C, hot enough to melt rock; found in 2019 by radial velocity.

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.