# Kepler-20

> star in the constellation Lyra

**Wikidata**: [Q51521](https://www.wikidata.org/wiki/Q51521)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kepler-20)  
**Source**: https://4ort.xyz/entity/kepler-20


## References

1. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.
2. SIMBAD
3. Source
4. Extrasolar Planets Encyclopaedia
5. Freebase Data Dumps. 2013
6. Photometric amplitude distribution of stellar rotation of KOIs--Indication for spin-orbit alignment of cool stars and high obliquity for hot stars
7. Rotation periods, variability properties and ages for Kepler exoplanet candidate host stars
8. Inferring probabilistic stellar rotation periods using Gaussian processes
9. Fourth USNO CCD Astrograph Catalog
10. Gaia Early Data Release 3
11. The second-generation guide star catalog: description and properties
12. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
13. Gaia Data Release 2
14. Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems
15. Gaia Data Release 3
16. Spectroscopy of faint Kepler mission exoplanet candidate host stars
17. The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets