The star
The star
Kepler-619
- Type
- yellow star
- Surface
- ≈ 5,980 K
- Size
- 1.11 × the Sun
- Mass
- 1.09 × the Sun
- Brightness
- 0.912 × the Sun
- Habitable zone
- 0.708–1.66 AU
The planets
Kepler-619
Kepler-619 c
- Year
- 1.21 days
- Distance from star
- 0.0222 AU
- Mass
- 3.5 Earths
- Size
- 1.7 × Earth
- Temperature
- ≈ 1767 K (+1494 °C)
- Found
- 2016, transit (Kepler)
Kepler-619
Kepler-619 b
- Year
- 5.40 days
- Distance from star
- 0.0601 AU
- Mass
- 10 Earths
- Size
- 3.2 × Earth
- Temperature
- ≈ 1073 K (+800 °C)
- Found
- 2016, transit (Kepler)
Kepler-619
Kepler-619 d
- Year
- 11.68 days
- Distance from star
- 0.102 AU
- Mass
- 16 Earths
- Size
- 4.2 × Earth
- Temperature
- ≈ 830 K (+557 °C)
- Found
- 2023, 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.