The star
The star
Kepler-215
- Type
- yellow star
- Surface
- ≈ 5,739 K
- Size
- 1.03 × the Sun
- Mass
- 0.79 × the Sun
- Brightness
- 0.763 × the Sun
- Habitable zone
- 0.657–1.55 AU
The planets
Kepler-215
Kepler-215 b
- Year
- 9.36 days
- Distance from star
- 0.084 AU
- Mass
- 3.3 Earths
- Size
- 1.6 × Earth
- Temperature
- ≈ 784 K (+511 °C)
- Found
- 2014, transit (Kepler)
Kepler-215
Kepler-215 c
- Year
- 14.67 days
- Distance from star
- 0.113 AU
- Mass
- 3.8 Earths
- Size
- 1.8 × Earth
- Temperature
- ≈ 675 K (+402 °C)
- Found
- 2014, transit (Kepler)
Kepler-215
Kepler-215 d
- Year
- 30.86 days
- Distance from star
- 0.185 AU
- Mass
- 24 Earths
- Size
- 2.4 × Earth
- Temperature
- ≈ 527 K (+254 °C)
- Found
- 2014, transit (Kepler)
Kepler-215
Kepler-215 e
- Year
- 68.16 days
- Distance from star
- 0.314 AU
- Mass
- 3.7 Earths
- Size
- 1.8 × Earth
- Temperature
- ≈ 405 K (+132 °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.