Planet Kepler-138 d

Name Kepler-138 d
Planet Status Confirmed
Discovered in 2014
Mass 0.00201 ( -0.00122 +0.00212 ) MJ
Mass*sin(i) 0.00318 ( -0.00107 +0.00132 ) MJ
Semi-Major Axis
Orbital Period 23.0881 ( -0.0008 +0.0009 ) day
Eccentricity 0.024 ( -0.016 +0.03 )
ω 170.0 ( -120.0 +130.0 ) deg
Tperi
Radius 0.108 ( -0.007 +0.007 ) RJ
Inclination
Update 2021-02-05
Detection Method Primary Transit
Mass Detection Method TTV
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature 431.0 K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names KOI-314.02, K000314.02, KOI-314 c, KOI-314d, 2MASS J19213157+4317347 d, K00314.02, KIC 7603200 d, KOI-314 d, WISE J192131.55+431734.9 d

Star

Kepler-138
Name Kepler-138
Distance 66.99 ( -0.11 +0.11 ) pc
Spectral type M1 V
Apparent magnitude V
Mass 0.52 ( -0.06 +0.06 ) MSun
Age
Effective temperature 3841.0 ( -49.0 +49.0 ) K
Radius 0.44 ( -0.02 +0.02 ) RSun
Metallicity [Fe/H] -0.28 ( -0.099 +0.099 )
Detected Disc
Magnetic Field
RA2000 19:21:31.6
Dec2000 +43:17:35
Alternate Names KOI-314, 2MASS J19213157+4317347, KIC 7603200, WISE J192131.55+431734.9
Planetary system
4 planets

More data

Observability Predictor

Remarks

The planets of the Kepler-138 system have received different KOI names when they were confirmed: As Kepler candidates, the names are K000314.01 (or KOI-314.01), K000134.02 (or KOI-314.02) and K000314.03 (or KOI-314.03). Kipping et al. (2014) and Rowe et al. (2014) simultaneously gave different names to the two exterior planets: Kipping et al. confirm and name KOI-314.01 as KOI-314 b et KOI-314.02 as KOI-314 c and do not confirm the reality of KOI-134.03. Rowe et al. confirm statistically the 3 planets and name KOI-134.03 as KOI-134b, KOI-134.01 as KOI-134c and KOI-134.02 as KOI-134d. The Kepler team names K000314.01 as Kepler-138 c, K000314.02 as Kepler-138 d and K000314.03 as Kepler-138 b

Related publications

Evidence for the volatile-rich composition of a 1.5-Earth-radius planet
2023 PIAULET C., BENNEKE B., ALMENARA J., DRAGOMIR D., KNUTSON H. et al.
Nature Astronomy, 7, 206
paper   arxiv  

Caught in the Act: Core-powered Mass-loss Predictions for Observing Atmospheric Escape
2021 GUPTA A. & SCHLICHTING H.
MNRAS, 504, 4634
paper   arxiv

A Deep Polarimetric Study of the Asymmetrical Debris Disk HD 106906
2021 CROTTS K., MATTHEWS B., ESPOSITO Th., DUCHENE G., KALAS P. et al.
ApJ, 915, 58
paper  

How Close are Compact Multi-Planet Systems to the Stability Limit?
2021 YEE S., TAMAYO D., HADDEN S. & WINN J.
Astron. J., 162, 55
paper   arxiv

Absolute densities in exoplanetary systems: photodynamical modelling of Kepler-138
2018 ALMENARA J., DIAZ R., DORN C., BONFILS X. & UDRY S.
MNRAS, accepted
arxiv   article  

The Gold Standard: Accurate Stellar and Planetary Parameters for Eight Kepler M dwarf Systems Enabled by Parallaxes
2017 MANN A., DUPUY T., MUIRHEAD Ph., JOHNSON M., LIU M. et al.
Astron. J., 153, 267
paper  arxiv  

Chemical Abundances of M-dwarfs from the APOGEE Survey. I. The Exoplanet Hosting Stars Kepler-138 and Kepler-186
2016 SOUTO D., CUNHA K., GARCIA-HERNANDEZ D., ZAMORA O., ALLIENDE PRIETO C. et al.
ApJ, 835, 238
paper  arxiv  ADS

The mass of the Mars-sized exoplanet Kepler-138 b from transit timing
2015 JONTOF-HUTTER D., ROWE J., LISSAUER D., FABRYCKY D. & FORD E.
Nature, 522, 321
paper  arxiv  ADS  

Comparative Habitability of Transiting Exoplanets
2015 BARNES R., MEADOWS V. & EVANS N.
ApJ, 814, 91
paper  arxiv  ADS

The Hunt for Exomoons with Kepler (HEK): IV. A Search for Moons around Eight M-Dwarfs
2014 KIPPING D., NESVORNY D., BUCHHAVE L., HARTMAN J., BAKOS G. & SCHMITT A.
ApJ, 784, 28
paper  arxiv 

Validation of Kepler's Multiple Planet Candidates. III: Light Curve Analysis & Announcement of Hundreds of New Multi-planet Systems
2014 ROWE J., BRYSON T., MARCY G., LISSAUER J., JONTOF-HUTTER D. et al.
ApJ, 784, 45
paper  arxiv