Planet Kepler-89 d

Name Kepler-89 d
Planet Status Confirmed
Discovered in 2012
Mass 0.164 ( -0.022 +0.021 ) MJ
Mass*sin(i)
Semi-Major Axis 0.165 AU
Orbital Period 22.3430004 (± 1.1e-05) day
Eccentricity
ω
Tperi
Radius 0.98 ( -0.0085 +0.0085 ) RJ
Inclination
Update 2015-08-31
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Primary transit 2454965.74047 (± 0.00019) 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-89
Name Kepler-89
Distance
Spectral type
Apparent magnitude V 12.4
Mass 1.25 (± 0.04) MSun
Age 3.9 (± 0.3) Gyr
Effective temperature 6116.0 (± 30.0) K
Radius 1.656 RSun
Metallicity [Fe/H] -0.01 (± 0.04)
Detected Disc
Magnetic Field
RA2000 19:49:20.0
Dec2000 +41:53:28
Alternate Names KOI-94
Planetary system
4 planets

Remarks

Alias 2MASS 19491993+4153280

More data

Observability Predictor

Remarks

Alias KOI-94.01.
The candidate KOI-94.01 is labelled here as KOI-94d according to the convention that increasing periods label planets b, c, d etc.

< b>26 Oct 2013 The 52 MEarth mass derived from TTVs for planet KOI-94 d is significantly smaller than the 106 MEarth mass derived from RV (Masuda et al. 2013)
< b>26 Oct 2013 The planet-planet eclipse PPE between KOI-94 d and e is confirmed and analysed by Masuda et al. (2013).
21 Sep 2012: The KOI-94 system is likely a planetary system given the measured Rossiter-McLaughlin effect for the candidate KOI-94 d (alias KOI-94.01) and the probable planet-planet eclipse for KOI-94 d and KOI-94 e (Hirano et al. 2012).


Related publications

The Planetary Mass-Radius Relation and its Dependence on Orbital Period as Measured by Transit Timing Variations and Radial Velocities
2017 MILLS S. & MAZEH T.
ApJ. Letters, 839, L8
paper  arxiv  ADS

Warm Jupiters are less lonely than hot Jupiters: close neighbours
2016 HUANG Ch., WU Y. & TRIAUD A.
ApJ, 825, 98
paper  arxiv  ADS  

Asteroseismology of Exoplanet Host Stars
2015 HUBER D.
in "Focus Meeting 17 - IAU General Assembly in Hawaii, August 2015"
arxiv  

A Discovery of a Candidate Companion to a Transiting System KOI-94: A Direct Imaging Study for a Possibility of a False Positive
2013 TAKABAYASHI Y., NARITA N., HIRANO T., KUZUHARA M., TAMURA M. & 48 additional authors
ApJ Letters, submitted
arxiv  

Characterization of the KOI-94 System with Transit Timing Variation Analysis: Implication for the Planet-Planet Eclipse
2013 MASUDA K., HIRANO T., TAUYA A., NAGASAWA M. & SUTO Y.
ApJ, 778, 185
paper  arxiv  

The Mass of KOI-94d and a Relation for Planet Radius, Mass, and Incident Flux
2013 WEISS L., MARCY G., ROWE J., HOWARD A., ISAACSON H. & 13 additional authors
ApJ, 768, 14
paper  arxiv   ADS  

Planet-Planet Eclipse and the Rossiter-McLaughlin Effect of a Multiple Transiting System: Joint Analysis of the Subaru Spectroscopy and the Kepler Photometry
2012 HIRANO T., NARITA N., SATO B., TAKAHASHI Y., MASUDA K. & 4 additional athors
ApJ Letters, 759, L36
paper   arxiv