Planet Kepler-20 Ac

Detailed information about planet Kepler-20 Ac and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

Kepler-20 Ac

Planet Status

Confirmed

Discovered in

2011

Publication Status

—

Update

2024-08-03

Mass

0.0349 (\pm 0.0066)

M_J 2 publications

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system
Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates

Mass*sin(i)

— 1 publication

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

Semi-Major Axis

0.094 AU 2 publications

The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory
Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates

Orbital Period

10.8540774 (\pm 2.1e-06)

day 1 publication

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Eccentricity

0.16 (\begin{matrix} + 0.01 \\ - 0.09 \end{matrix})

1 publication

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Angular distance

0.000321 arcsec

ω

—

T_peri

—

Radius

0.2569 (\pm 0.01195)

R_J 2 publications

The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory
A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Inclination

89.815 (\begin{matrix} + 0.036 \\ - 0.63 \end{matrix})

deg 2 publications

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems
A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

2454971.60795 (\begin{matrix} + 0.000248 \\ - 0.000202 \end{matrix})

JD 1 publication

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Secondary transit

—

λ

—

Impact Parameter b

0.594 (\begin{matrix} + 0.018 \\ - 0.021 \end{matrix})

1 publication

Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates

Time V_r=0

—

Velocity Semiamplitude K

4.0725 (\pm 0.6768)

m/s 2 publications

The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory
A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Calculated temperature

772.0 (\begin{matrix} + 26.0 \\ - 26.0 \end{matrix})

K 1 publication

A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

Kepler-20 c, KOI-70 c, KOI-70.01, K00070.01, KIC 6850504 c, 2MASS J19104752+4220194 c, WISE J191047.52+422019.0 c

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Alias KOI-70.03

No link

Star

Name

Kepler-20 A

Distance

282.563 (\begin{matrix} + 1.776 \\ - 1.753 \end{matrix})

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

G6V

Apparent magnitude V

12.5

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.929 (\pm 0.053)

M_Sun 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Age

5.6 (\begin{matrix} + 4.5 \\ - 3.5 \end{matrix})

Gyr 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Effective temperature

5495.0 (\pm 50.0)

K 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Radius

0.9164 (\begin{matrix} + 0.0987 \\ - 0.0077 \end{matrix})

R_Sun 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Metallicity [Fe/H]

0.07 (\pm 0.08)

1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

19:10:47.5

Dec₂₀₀₀

+42:20:19.4

Alternate Names

WISE J191047.52+422019.0, Kepler-20, KOI-70, KIC 6850504, 2MASS J19104752+4220194

An M dwarf companion star lies 1085 AUs away.

No link

Simbad
Most recent references (ADS)

Planet Kepler-20 Ac

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 6 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Planet Kepler-20 Ac

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 6 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

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Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Orbital obliquity sampling in the Kepler-20 system using the 3D animation software Blender

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A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system

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The Exoplanet Handbook