The star
The star
Gaia23braL
- Type
- orange dwarf
- Surface
- ≈ 5,055 K
- Size
- 1.36 × the Sun
- Mass
- 0.77 × the Sun
- Brightness
- 1.09 × the Sun
- Habitable zone
- 0.816–1.97 AU
The planets
Gaia23braL
Gaia23braL b
- Year
- 12.1 years
- Distance from star
- 4.85 AU
- Mass
- 1.6 Jupiters
- Size
- 14 × Earth
- Temperature
- ≈ 129 K (-144 °C)
- Found
- 2026, microlensing (European Space Agency (ESA) Gaia Satellite)
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
A lens in space
The system briefly magnified a more distant star; a planet left its own small blip in the brightening.
Sources
- Planet and star parameters: NASA Exoplanet Archive, Planetary Systems Composite Parameters, retrieved 1 Nov 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.