23 Dec 2011: Tha semi-majors axis is derived from the stellar radius and the ratio a/Rs given by Fressin et al. 2011. The semi-major axis derived the the stellar mass and the orbital period is 0.064 ± 0.001 AU.
21 Dec 2011: The mass limit is derived from RV measurements; "theoretical considerations give 0.39 MEarth < MP < 1.67 MEarth" (Fressin et al 2011)
| Name | Kepler-20 | |
| Distance | 290 ± 30 pc | ![]() |
| Spectral type | G8 | |
| Apparent magnitude V | 12.5 | |
| Mass | 0.912 ± 0.035 MSun | ![]() |
| Age | 8.8 +2.7-2.7 Gyr | ![]() |
| Effective temperature | 5466 ± 93 K | ![]() |
| Radius | 0.944 +0.095-0.095 RSun | ![]() |
| Metallicity [Fe/H] | 0.02 ± 0.04 | ![]() |
| RA2000 | 19:10:48.0 | |
| Dec2000 | +42:20:19 | |
| Planetary system | 5 planets |
Decoupling Phase Variations in Multi-Planet Systems
Nov. 30, 2012
KANE S. & GELINO D.
ApJ, accepted
arxiv
An Efficient Automated Validation Procedure for Exoplanet Transit Candidates
June 8, 2012
MORTON T.
ApJ., 761, 6
paper arxiv
Dynamics of Rotation of Super-Earths
June 2, 2012
CALLEGARI N. & RODRIGUEZ J.
arxiv
Theoretical Spectra of Terrestrial Exoplanet Surfaces
May 21, 2012
HU R., EDELMANN B. & SEAGER S.
ApJ., 752, 7
paper arxiv
A Correlation Between the Eclipse Depths of Kepler Gas Giant Candidates and the Metallicities of their Parent Stars
April 12, 2012
DODSON-ROBINSON S.
ApJ.
arxiv
Two Earth-sized planets orbiting Kepler-20
Feb. 11, 2012
FRESSIN F., TORRES G., ROWE J., CHARBONNEAU D., ROGERS L. & 30 additional authors
Nature, 482, 195
paper arxiv
A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
Feb. 10, 2012
HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS
arxiv
The Exoplanet Handbook
May 22, 2012
Michael Perryman
Content
Content and Chapter 5