The star
The star
Kepler-616
- Type
- white star
- Surface
- ≈ 6,004 K
- Size
- 0.98 × the Sun
- Mass
- 1.06 × the Sun
- Brightness
- 0.774 × the Sun
- Habitable zone
- 0.651–1.53 AU
The planets
Kepler-616
Kepler-616 b
- Year
- 10.00 days
- Distance from star
- 0.0927 AU
- Mass
- 6.5 Earths
- Size
- 2.4 × Earth
- Temperature
- ≈ 860 K (+587 °C)
- Found
- 2016, transit (Kepler)
Kepler-616
Kepler-616 d
- Year
- 51.07 days
- Distance from star
- 0.275 AU
- Mass
- 7.5 Earths
- Size
- 2.7 × Earth
- Temperature
- ≈ 499 K (+226 °C)
- Found
- 2021, transit (Kepler)
Kepler-616
Kepler-616 c
- Year
- 90.41 days
- Distance from star
- 0.402 AU
- Mass
- 12 Earths
- Size
- 3.4 × Earth
- Temperature
- ≈ 413 K (+140 °C)
- Found
- 2016, 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.