The star
The star
Kepler-529
- Type
- white star
- Surface
- ≈ 6,087 K
- Size
- 1.14 × the Sun
- Mass
- 1.07 × the Sun
- Brightness
- 1.61 × the Sun
- Habitable zone
- 0.935–2.19 AU
The planets
Kepler-529
Kepler-529 b
- Year
- 1.98 days
- Distance from star
- 0.0309 AU
- Mass
- 4.1 Earths
- Size
- 1.9 × Earth
- Temperature
- ≈ 1662 K (+1389 °C)
- Found
- 2016, transit (Kepler)
Kepler-529
Kepler-529 c
- Year
- 12.83 days
- Distance from star
- 0.107 AU
- Mass
- 4.7 Earths
- Size
- 2 × Earth
- Temperature
- ≈ 891 K (+618 °C)
- Found
- 2016, transit (Kepler)
Kepler-529
Kepler-529 d
- Year
- 35.87 days
- Distance from star
- 0.213 AU
- Mass
- 8.2 Earths
- Size
- 2.8 × Earth
- Temperature
- ≈ 633 K (+360 °C)
- Found
- 2021, 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.