The star
The star
Kepler-1487
- Type
- white star
- Surface
- ≈ 6,541 K
- Size
- 1.63 × the Sun
- Mass
- 1.38 × the Sun
- Brightness
- 3.6 × the Sun
- Habitable zone
- 1.36–3.16 AU
The planets
Kepler-1487
Kepler-1487 b
- Year
- 7.32 days
- Distance from star
- 0.0898 AU
- Mass
- 5.2 Earths
- Size
- 2.1 × Earth
- Temperature
- ≈ 1682 K (+1409 °C)
- Found
- 2016, transit (Kepler)
Kepler-1487
Kepler-1487 c
- Year
- 35.80 days
- Distance from star
- 0.259 AU
- Mass
- 49 Earths
- Size
- 8 × Earth
- Temperature
- ≈ 991 K (+718 °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.