Astronomical evidence
Kepler-47 d orbits Kepler-47. The saved catalog gives an orbital period of 187.366 (+0.069/−0.051) days. Its discovery method is recorded as transit. These quantities describe the real astronomical setting behind the illustration. Kepler-47 d adds another planetary orbit to the Kepler-47 binary system. Its period is shorter than that of Kepler-47 c. Comparing those periods places the planets within the observed architecture, while the mass uncertainties show how much less tightly some physical properties are constrained than the recurrence of transits. The catalog radius is 7.04 (+0.66/−0.49) Earth radii. The mass entry is 19.02 (+23.84/−11.67) Earth masses. The source papers and full table retain the provenance of each parameter.
The illustrated viewpoint
The pictured atmospheric moon is invented. The parent planet’s discovery does not validate the satellite’s orbit, cloud layers or apparent size in this sky.
The pictured atmospheric moon is invented. The parent planet’s discovery does not validate the satellite’s orbit, cloud layers or apparent size in this sky. All depicted life and technology are fictional.
Catalog measurements & sources
Host: Kepler-47. Snapshot: 25 September 2026. Errors, limits and source provenance are retained. Calculated values and model estimates are not direct measurements. Unknown is not zero; equilibrium temperature is not surface temperature.
| Quantity / unit | Value / reported errors | Source |
|---|---|---|
| Radius · Earth radii | 7.04 (+0.66 / -0.49) | Orosz et al. 2019 |
| Mass · Earth masses | 19.02 (+23.84 / -11.67) | Orosz et al. 2019 |
| Density · g/cm³ | 0.3 (+0.38 / -0.18) | Orosz et al. 2019 |
| Orbital period · days | 187.366 (+0.069 / -0.051) | Orosz et al. 2019 |
| Orbital semimajor axis · AU | 0.6992 (+0.0031 / -0.0033) | Orosz et al. 2019 |
| Eccentricity | 0.024 (+0.025 / -0.017) | Orosz et al. 2019 |
| Inclination · degrees | 90.395 (+0.009 / -0.012) | Orosz et al. 2019 |
| Irradiation · Earth flux | 1.7171 (+0.1373 / -0.1373) | Calculated Value |
| Equilibrium temperature · K | 314.44 (+5.69 / -5.69) | Calculated Value |
| Stellar effective temperature · K | 5636 (+100 / -100) | Orosz et al. 2012 |
| Stellar radius · Solar | 0.936 (+0.005 / -0.005) | Orosz et al. 2019 |
| Stellar mass · Solar | 0.957 (+0.013 / -0.015) | Orosz et al. 2019 |
| Stellar luminosity · log Solar | -0.076 (+0.033 / -0.036) | Orosz et al. 2012 |
| Stellar age · Gyr | Unknown | Not supplied |
| Stellar metallicity · dex | -0.25 (+0.08 / -0.08) | Orosz et al. 2012 |
| Distance · pc | 1025.02 (+30.6445 / -30.6445) | TICv8 |