# Kepler-9 b

> extrasolar planet

**Wikidata**: [Q47519](https://www.wikidata.org/wiki/Q47519)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kepler-9b)  
**Source**: https://4ort.xyz/entity/kepler-9-b


## References

1. SIMBAD
2. The Gaia–Kepler Stellar Properties Catalog. II. Planet Radius Demographics as a Function of Stellar Mass and Age
3. Kepler planet masses and eccentricities from TTV analysis
4. Densities and eccentricities of 139 Kepler planets from transit time variations
5. Kepler-9: a system of multiple planets transiting a Sun-like star, confirmed by timing variations
6. TRADES: A new software to derive orbital parameters from observed transit times and radial velocities
7. Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2
8. Stellar Spin–Orbit Alignment for Kepler-9, a Multi-transiting Planetary System with Two Outer Planets Near 2:1 Resonance
9. Transit timing observations from Kepler. IX. Catalog of the full long-cadence data set
10. False positive probabilities for all Kepler objects of interest: 1284 newly validated planets and 428 likely false positives
11. HARPS-N radial velocities confirm the low densities of the Kepler-9 planets
12. The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory
13. Extrasolar Planets Encyclopaedia
14. A Preponderance of Perpendicular Planets
15. Spectroscopy of faint Kepler mission exoplanet candidate host stars
16. An abundance of small exoplanets around stars with a wide range of metallicities
17. Exoplanet Archive
18. Freebase Data Dumps. 2013
19. Gaia Data Release 2