Planet Kepler-34(AB) b

Name Kepler-34(AB) b
Discovered in 2012
Mass 0.219928892804 ( -0.00997388541044 +0.0109807129598 ) MJ
Semi-major axis 1.0896 (± 0.0009) AU
Orbital period 288.822 ( -0.081 +0.081 ) day
Eccentricity 0.182 ( -0.02 +0.02 )
ω
Tperi
Radius 0.763673411854 (± 0.0133821275442) RJ
Inclination 90.355 ( -0.018 +0.018 ) deg;
Update May 22, 2014
Detection Method Primary Transit
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit 2454969.2 JD
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitute
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Observability Predictor

Remarks

12 Jan 2012: The mean longitude λ = M + ω is 106.5 +2.5-2.0 deg. (Welsh et al. 2012)

Star

Name Kepler-34(AB)
Distance 1499.0 (± 33.0) pc
Spectral type G
Apparent magnitude V 15.0
Mass 2.0687 (± 0.0033) MSun
Age
Effective temperature 5913.0 (± 130.0) K
Radius 1.1 (± 0.0) RSun
Metallicity [Fe/H] -0.07 (± 0.15)
Detected Disc
Magnetic Field
RA2000 19:45:45.0
Dec2000 +44:38:30
Alternate Names
Planetary system 1 planet

Remarks

Alias 2MASS 19454459+4438296

12 Jan 2012: Kepler 34 is an eclipsing binary star with a 28 day period with two G components.

The mass given to Kepler-34(AB) is the sum of the masses of components A and B.
The parameters for the individual components are (in solar units - Welsh et al. 2012):
Star A:
Mass: 1.0479 ± 0.0033
Radius: 1.1618 ± 0.0030
Temp.: 5913 ± 130 K
Star B:
Mass: 1.0208 ± 0.0022
Radius: 1.0927 ± 0.0030
Binary system:
Period: 27.7958103 ± 0.0000016 day
Semi-maj. axis: 0.22882 ± 0.00019 AU
Inclination: 89.8584 ± 0.0080 deg.
Ecc.: 0.52087 ± 0.00055

More data


Related publications

Analytic orbit propagation for transiting circumbinary planets
2015 GEORGAKARAKOS N. & EGGL S.
ApJ, accepted
arxiv  

Understanding the Mass-Radius Relation for Sub-Neptunes: Radius as a Proxy for Composition
2013 LOPEZ E. & FORTNEY J.
ApJ, 792, 1
arxiv   paper  

Transiting circumbinary planets Kepler-34 b and Kepler-35 b
2012 WELSH W., OROSZ J., CARTER J., FABRYCKY D., FORD E., LISSAUER J. & 40 additional authors
Nature, 481, 475
paper   arxiv