# Kepler-57

> star in the constellation Cygnus

**Wikidata**: [Q4042160](https://www.wikidata.org/wiki/Q4042160)  
**Source**: https://4ort.xyz/entity/kepler-57


## References

1. SIMBAD
2. Extrasolar Planets Encyclopaedia
3. Photometric amplitude distribution of stellar rotation of KOIs--Indication for spin-orbit alignment of cool stars and high obliquity for hot stars
4. Stellar rotation periods of the Kepler Objects of Interest: a dearth of close-in planets around fast rotators
5. Rotation periods, variability properties and ages for Kepler exoplanet candidate host stars
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Early Data Release 3
8. Fourth USNO CCD Astrograph Catalog
9. Gaia Data Release 2
10. APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South
11. The Influence of 10 Unique Chemical Elements in Shaping the Distribution of Kepler Planets
12. The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets