# Kepler-220d

> extrasolar planet

**Wikidata**: [Q28503732](https://www.wikidata.org/wiki/Q28503732)  
**Source**: https://4ort.xyz/entity/q28503732


## References

1. SIMBAD
2. Transit Timing Variations and linear ephemerides of confirmed Kepler transiting exoplanets
3. Transit timing observations from Kepler. IX. Catalog of the full long-cadence data set
4. Validation of Kepler's multiple planet candidates. III. Light curve analysis and announcement of hundreds of new multi-planet systems
5. Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2
6. Spectro-thermometry of M dwarfs and their candidate planets: too hot, too cool, or just right?
7. False positive probabilities for all Kepler objects of interest: 1284 newly validated planets and 428 likely false positives
8. The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory
9. Extrasolar Planets Encyclopaedia
10. Exoplanet Archive
11. Gaia Data Release 2