The star
The star
Kepler-352
- Type
- orange dwarf
- Surface
- ≈ 5,208 K
- Size
- 0.77 × the Sun
- Mass
- 0.80 × the Sun
- Brightness
- 0.37 × the Sun
- Habitable zone
- 0.471–1.13 AU
The planets
Kepler-352
Kepler-352 d
- Year
- 6.89 days
- Distance from star
- 0.0657 AU
- Mass
- 0.45 Earths
- Size
- 0.81 × Earth
- Temperature
- ≈ 788 K (+515 °C)
- Found
- 2021, transit (Kepler)
Kepler-352
Kepler-352 b
- Year
- 10.06 days
- Distance from star
- 0.085 AU
- Mass
- 0.57 Earths
- Size
- 0.86 × Earth
- Temperature
- ≈ 694 K (+421 °C)
- Found
- 2014, transit (Kepler)
Kepler-352
Kepler-352 c
- Year
- 16.33 days
- Distance from star
- 0.118 AU
- Mass
- 2.1 Earths
- Size
- 1.2 × Earth
- Temperature
- ≈ 591 K (+318 °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.