Planet Kepler-20 e

Name Kepler-20 e
Planet Status Confirmed
Discovered in 2011
Mass < 0.0097 MJ
Mass*sin(i)
Semi-Major Axis 0.0639 ( -0.0014 +0.0019 ) AU
Orbital Period 6.09852281 ( -1.351e-05 +6.08e-06 ) day
Eccentricity
ω
Tperi
Radius 0.0772 ( -0.0025 +0.0023 ) RJ
Inclination 87.632 ( -0.128 +1.085 ) deg
Update 2016-08-26
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2454968.93154 ( -0.000732 +0.002223 ) JD
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

Kepler-20
Name Kepler-20
Distance 290.0 (± 30.0) 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 5466.0 (± 93.0) K
Radius 0.944 ( -0.095 +0.095 ) RSun
Metallicity [Fe/H] 0.02 (± 0.04)
Detected Disc
Magnetic Field
RA2000 19:10:48.0
Dec2000 +42:20:19
Alternate Names
Planetary system
6 planets

Remarks

Alias 2MASS J19104752+4220194
Alias KOI-70

More data

Observability Predictor

Remarks

Alias KOI-70.05

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)


Related publications

Discovery of the first Earth-sized planets orbiting a star other than our Sun in the Kepler-20 system
2019 TORRES G. & FRESSIN F.
New Astron. Rev., accepted
arxiv  

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system
2016 BUCHHAVE, L., DRESSING, C., DUMUSQUE, X., RICE, K, VANDERBURG, A. & 33 additional authors
Astron. J., 152, 160
paper  arxiv  ADS  

Stealing the Gas: Giant Impacts and the Large Diversity in Exoplanet Densities
2016 INAMDAR N. & SCHLICHTING H.
Apj Letters, 817, L13
paper   arxiv   ADS  

Detailed Abundances of Stars with Small Planets Discovered by Kepler I: The First Sample
2015 SCHULER S., VAZ Z., KATIME SANTRICH O., CUNHA K. et al.
ApJ, 815, 5
paper  arxiv  ADS

Gravitational quantization of exoplanet orbits in 55 Cnc, $\upsilon$ And, Kepler-11, Kepler-20, and Kepler-90
2014 GEROYANNIS V.
arxiv  

Inside-Out Planet Formation
2014 CHATTERJEE S. & TAN J.
ApJ Letters, 780, 53
paper   arxiv   ADS  

Very high density planets: a possible remnant of gas giants
2014 MOCQUET A., GRASSET O. & SOTIN C.
Phil. Trans. Roy. Soc. A, 372, 20130164
paper  

Below One Earth Mass: The Detection, Formation, and Properties of Subterrestrial Worlds
2013 SIMUKOFF E., FULTON B., SCUDERI L. & GAIDOS E.
Spa. Sci. Rev., 180, 71-99
paper   arxiv  

Dynamics of Rotation of Super-Earths
2013 CALLEGARI N. & RODRIGUEZ J.
Cel. mech. & Dyn. Astron., 116, 389
arxiv   paper

Theoretical Spectra of Terrestrial Exoplanet Surfaces
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
2012 DODSON-ROBINSON S.
ApJ., 752, Issue 1, 72, 9 pp
paper   arxiv

An Efficient Automated Validation Procedure for Exoplanet Transit Candidates
2012 MORTON T.
ApJ., 761, 6
paper  arxiv

A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS, 423, Issue 3, 2800-2814
paper  arxiv

Decoupling Phase Variations in Multi-Planet Systems
2012 KANE S. & GELINO D.
ApJ, accepted
arxiv  

Two Earth-sized planets orbiting Kepler-20
2012 FRESSIN F., TORRES G., ROWE J., CHARBONNEAU D., ROGERS L. & 30 additional authors
Nature, 482, 195
paper   arxiv

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5

Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates
2011 GAUTIER Th., CHARBONNEAU D., ROWE J., MARCY G., ISAACSON H., TORRES G. & 38 additional authors
ApJ., 749, 15
paper   arxiv