The star
The star
DENIS-P J082303.1-491201
- Type
- L1.5
- Mass
- 0.07 × the Sun
The planets
DENIS-P J082303.1-491201
DENIS-P J082303.1-491201 b
- Year
- 246.36 days
- Distance from star
- 0.36 AU
- Mass
- 29 Jupiters
- Size
- 12 × Earth
- Found
- 2013, astrometry (Paranal Observatory)
Masses found by the wobble method are minimums, because the orbit's tilt is unknown. Temperatures are equilibrium estimates for a bare planet, before any atmosphere.
How we know
The star's drift
The planet pulls the star in a tiny loop across the sky, measured against background stars over many years.
Sources
- Planet and star parameters: NASA Exoplanet Archive, Planetary Systems Composite Parameters, retrieved 31 Oct 2026. 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.
- Position: HYG Database v4.1 (CC BY-SA 4.0).
- Habitable zone: a simple estimate from the star's brightness (√L × 0.95 to 1.67 AU), shown as a guide.