Planet Kepler-31 c

Name Kepler-31 c
Planet Status Confirmed
Discovered in 2012
Mass < 4.7 MJ
Mass*sin(i)
Semi-Major Axis 0.26 AU
Orbital Period 42.6318 (± 0.0005) day
Eccentricity
ω
Tperi
Radius 0.38 ( -0.07 +0.07 ) RJ
Inclination
Update 2014-05-01
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Primary transit 2454974.191 (± 0.007) 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-31
Name Kepler-31
Distance
Spectral type
Apparent magnitude V 15.5
Mass 1.21 (± 0.17) MSun
Age
Effective temperature 6340.0 (± 200.0) K
Radius 1.22 (± 0.24) RSun
Metallicity [Fe/H] -0.08 (± 0.4)
Detected Disc
Magnetic Field
RA2000 19:36:06.0
Dec2000 +45:51:11
Alternate Names
Planetary system
3 planets

Remarks

Alias KOI 935
Alias KIC 9347899
Alias 2MASS 19360552+4551110

More data

Observability Predictor

Remarks

28 Jan 2012: The upper mass limit is inferred from transit time variations and dynamical stability (Fabrycky et al. 2012)

Related publications

Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models
2012 FABRYCKY D., FORD E., STEFFEN J., ROWE J., CARTER J. & 29 additional authors
ApJ., 750, 114
paper   arxiv

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5