Planet Kepler-9 d

Name Kepler-9 d
Discovered in 2010
Mass 0.016518264481 (± 0.00550608816034) MJ
Semi-major axis 0.0273 ( -0.00043 +0.00042 ) AU
Orbital period 1.592851 (± 4.5e-05) day
Eccentricity
ω
Tperi
Radius 0.178428367256 (± 0.00446070918139) RJ
Inclination
Update April 19, 2014
Detection Method Primary Transit
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit 2455015.094 ( -0.0033 +0.0033 ) 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

23 Nov 2010: Current spectroscopic observations are as yet insufficient to confirm the mass of planet d previuosly estimated by Holman et al. 2010 (Torres et al. 2010) 10 Sep. 2010: This candidate is inferred from the evidence of a third transit with depth ~2000 ppm. The mass estimate is inferred from the radius and a Marcus et al. 2010 model of super-Earths (Holman et al. 2010).

Star

Name Kepler-9
Distance
Spectral type
Apparent magnitude V 13.9
Mass 1.0 (± 0.1) MSun
Age 3.0 (± 1.0) Gyr
Effective temperature 5722.0 K
Radius 1.1 (± 0.09) RSun
Metallicity [Fe/H] 0.17
Detected Disc
Magnetic Field
RA2000 19:02:18.0
Dec2000 +38:24:03
Alternate Names
Planetary system 3 planets

Remarks

Alias KIC 3323887
Alias 2MASS 19021775+3824032

More data


Related publications

TRADES: a new software to derive orbital parameters from observed Transit Times and Radial Velocities. Revisiting Kepler-11 and Kepler-9
2014 BORSATO, L., MARZARI, F., NASCIMBENI, V., PIOTTO, G., GRANATA, V. & 2 additional authors
Astron. & Astrophys., accepted
arxiv 

Modeling Kepler transit light curves as false positives: rejection of blend scenarios for Kepler-9, and validation of Kepler-9 d, a super-Earth-ize planet in a multiple system
2011 TORRES G., FRESSIN F., BATALHA N., BORUCKI W., BROWN T. & 27 additional authors
ApJ., 727, 24
paper

Kepler-9 revisited 60% the mass with six times more data
2014 DREIZLER S. & OFIR A.
Astron. & Astrophys., submitted
arxiv  

Kepler-9: A System of Multiple Planets Transiting a Sun-Like Star, Confirmed by Timing Variations
2010 HOLMAN M., FABRYCKY D., RAGOZZINE D., FORD E., STEFFEN J. & 37 additional authors
Science, 330, 51
paper