The star
The star
Kepler-58
- Type
- yellow star
- Surface
- ≈ 5,843 K
- Size
- 1.03 × the Sun
- Mass
- 0.95 × the Sun
- Brightness
- 0.99 × the Sun
- Habitable zone
- 0.744–1.75 AU
The planets
Kepler-58
Kepler-58 e
- Year
- 4.46 days
- Distance from star
- 0.0533 AU
- Mass
- 1.9 Jupiters
- Size
- 1.6 × Earth
- Temperature
- ≈ 1212 K (+939 °C)
- Found
- 2023, transit (Kepler)
Kepler-58
Kepler-58 b
- Year
- 10.22 days
- Distance from star
- 0.0929 AU
- Mass
- 36 Earths
- Size
- 2.8 × Earth
- Temperature
- ≈ 920 K (+647 °C)
- Found
- 2012, transit (Kepler)
Kepler-58
Kepler-58 c
- Year
- 15.57 days
- Distance from star
- 0.123 AU
- Mass
- 53 Earths
- Size
- 2.9 × Earth
- Temperature
- ≈ 799 K (+526 °C)
- Found
- 2012, transit (Kepler)
Kepler-58
Kepler-58 d
- Year
- 40.10 days
- Distance from star
- 0.236 AU
- Mass
- 2.5e+02 Earths
- Size
- 2.9 × Earth
- Temperature
- ≈ 583 K (+310 °C)
- Found
- 2014, transit (Kepler)
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 shadow
The planet passes in front of its star and dims it by a fraction of a percent, every orbit. The dip gives the planet's size and year.
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.