Planet Kepler-37 d

Detailed information about planet Kepler-37 d and its parameters.

Planet parameters Publications Observability Predictor Exo3D

Planet

Name

Kepler-37 d

Planet Status

Confirmed

Discovered in

2013

Publication Status

—

Update

2026-07-11

Mass

0.017 (\pm 0.0044)

M_J 2 publications

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals
Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets

Mass*sin(i)

—

Semi-Major Axis

0.2109 (\pm 0.0029)

AU 2 publications

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals
A sub-Mercury-sized exoplanet

Orbital Period

39.7922 day 1 publication

Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets

Eccentricity

0.142 (\begin{matrix} + 0.036 \\ - 0.044 \end{matrix})

1 publication

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals

Angular distance

—

ω

—

T_peri

—

Radius

0.173 (\pm 0.005)

R_J 2 publications

Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets
A sub-Mercury-sized exoplanet

Inclination

89.335 (\begin{matrix} + 0.043 \\ - 0.047 \end{matrix})

deg 1 publication

A sub-Mercury-sized exoplanet

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

2455008.24979 (\begin{matrix} + 0.00043 \\ - 0.00049 \end{matrix})

JD 1 publication

A sub-Mercury-sized exoplanet

Secondary transit

—

λ

—

Impact Parameter b

0.53 (\begin{matrix} + 0.01 \\ - 0.01 \end{matrix})

1 publication

Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets

Time V_r=0

—

Velocity Semiamplitude K

1.22 (\pm 0.31)

m/s 1 publication

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

KIC 8478994 d, TOI-5980 d, KOI-245 d, KOI-245.01, TOI-5980.01, 2MASS J18561431+4431052 d, WISE J185614.24+443105.9 d

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

TESS detects planet Kepler-37 d as TOI-5980.01 but with nearly twice the original orbital period (P = 79.584 d)

https://exofop.ipac.caltech.edu/tess/target.php?id=164652245

Star

Name

Kepler-37

Distance

63.92 (\pm 0.119)

Spectral type

sdG8

Apparent magnitude V

10.3

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.79 (\begin{matrix} + 0.03 \\ - 0.033 \end{matrix})

M_Sun 1 publication

The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

Age

7.6 (\begin{matrix} + 3.4 \\ - 3.1 \end{matrix})

Gyr 2 publications

A sub-Mercury-sized exoplanet
The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

Effective temperature

5357.0 (\pm 68.0)

K 2 publications

A sub-Mercury-sized exoplanet
The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

Radius

0.789 (\begin{matrix} + 0.0064 \\ - 0.0056 \end{matrix})

R_Sun 1 publication

The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

Metallicity [Fe/H]

-0.36 (\pm 0.05)

2 publications

A sub-Mercury-sized exoplanet
The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

18:56:14.3

Dec₂₀₀₀

+44:31:05.3

Alternate Names

KOI-245, WISE J185614.24+443105.9, TIC 164652245, TOI-5980, 2MASS J18561431+4431052, BD+44 3020, KIC 8478994

No remarks

No link

Simbad
Most recent references (ADS)

Planet Kepler-37 d

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages Some pages

Star

Basic informations 17 parameters

Planetary system 4 planets

Remarks No remark

Other web pages No page

More data 2 references

Planet Kepler-37 d

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages Some pages

Star

Basic informations 17 parameters

Planetary system 4 planets

Remarks No remark

Other web pages No page

More data 2 references

Related publications

The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

TESS Observations of Kepler Systems with Transit Timing Variations

Detailed chemical compositions of planet-hosting stars: II. Exploration of the interiors of terrestrial-type exoplanets

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals

Testing exoplanet evaporation with multi-transiting systems

Spin-orbit alignment of exoplanet systems: ensemble analysis using asteroseismology

Detailed Abundances of Stars with Small Planets Discovered by Kepler I: The First Sample

Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets

A sub-Mercury-sized exoplanet