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 |
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
TESS Observations of Kepler Systems with Transit Timing Variations
2022
JONTOF-HUTTER D., DALBA P. & LIVINGSTON J.
Astron. J., 164, 42
paper arxiv
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
