Planet Kepler-89 b

Name Kepler-89 b
Planet Status Confirmed
Discovered in 2013
Mass 0.033 ( -0.014 +0.014 ) MJ
Mass*sin(i)
Semi-Major Axis 0.05119 ( -0.00067 +0.00067 ) AU
Orbital Period 3.743208 ( -1.5e-05 +1.5e-05 ) day
Eccentricity 0.25 ( -0.17 +0.17 )
ω
Tperi
Radius 0.153 ( -0.014 +0.014 ) RJ +
Inclination 89.3 ( -0.57 +0.57 ) deg
Update 2021-03-08
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Primary transit 2454965.74047 (± 0.00019) JD
Secondary transit
λ
Impact Parameter b 0.088 ( -0.072 +0.072 )
Time Vr=0
Velocity Semiamplitude K 3.3 ( -1.4 +1.4 ) m/s
Calculated temperature 1486.0 K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names 2MASS J19491993+4153280 b, K00094.04, KIC 6462863 b, KOI-94 A b, KOI-94.04, Kepler-89 A b, Kepler-89 b, WISE J194919.96+415327.9 b, KOI-94 b

Star

KOI-94
Name KOI-94
Distance 483.65 ( -5.05 +5.05 ) pc
Spectral type
Apparent magnitude V 12.4
Mass 1.28 ( -0.05 +0.05 ) MSun
Age 3.16 ( --0.39 +0.39 ) Gyr
Effective temperature 6182.0 ( -58.0 +58.0 ) K
Radius 1.52 ( -0.14 +0.14 ) RSun
Metallicity [Fe/H] 0.023 ( -0.002 +0.002 )
Detected Disc
Magnetic Field
RA2000 19:49:19.9
Dec2000 +41:53:28
Alternate Names KOI-94, 2MASS J19491993+4153280, KIC 6462863, KOI-94 A, Kepler-89, Kepler-89 A, WISE J194919.96+415327.9
Planetary system
4 planets

Remarks

Alias 2MASS 19491993+4153280

More data

Observability Predictor

Remarks

Alias KOI-94.04.
The candidate KOI-94.04 is labelled here as KOI-94b according to the convention that increasing periods label planets b, c, d etc.

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

Revisiting the Kepler field with TESS: Improved ephemerides using TESS 2min data
2021 BATTLEY M., KUNIMOTO M., ARMSTRONG D. & POLLACCO D.
MNRAS, 503, 4092
paper   arxiv

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  

The Mass-Radius Relation Between 65 Exoplanets Smaller than 4 Earth Radii
2014 WEISS L. & MARCY G.
ApJ Letters, 783, L6
paper   arxiv   ADS  

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  

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  

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