Planet K2-4 b

Detailed information about planet K2-4 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

K2-4 b

Planet Status

Confirmed

Discovered in

2015

Publication Status

Published in a refereed paper

Update

2021-02-05

Mass

—

Mass*sin(i)

—

Semi-Major Axis

0.078 (\begin{matrix} + 0.003 \\ - 0.003 \end{matrix})

AU 1 publication

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7

Orbital Period

10.003417 (\begin{matrix} + 0.001017 \\ - 0.000996 \end{matrix})

day 1 publication

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7

Eccentricity

0.08 (\begin{matrix} + 0.161192 \\ - 0.068641 \end{matrix})

1 publication

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7

Angular distance

—

ω

-41.44 (\begin{matrix} + 132.8953 \\ - 98.9633 \end{matrix})

deg 1 publication

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7

T_peri

—

Radius

0.187 (\begin{matrix} + 0.018 \\ - 0.017 \end{matrix})

R_J 1 publication

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7

Inclination

89.54 (\begin{matrix} + 0.32 \\ - 0.43 \end{matrix})

deg 1 publication

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7

Detection Method

Primary Transit

Mass Meas. Method

—

Radius Meas. Method

Primary Transit

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

EPIC-201208431 b, 2MASS J11385895-0354202 b, EPIC 201208431 b, EPIC 201208431.01, WISE J113858.93-035420.0 b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

No remarks

No link

Star

Name

K2-4

Distance

233.37 (\begin{matrix} + 2.12 \\ - 2.12 \end{matrix})

Spectral type

—

Apparent magnitude V

—

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.64 (\begin{matrix} + 0.06 \\ - 0.06 \end{matrix})

M_Sun

Age

—

Effective temperature

4014.73 (\begin{matrix} + 173.12 \\ - 154.57 \end{matrix})

Radius

0.57 (\begin{matrix} + 0.05 \\ - 0.05 \end{matrix})

R_Sun

Metallicity [Fe/H]

-0.12 (\begin{matrix} + 0.1 \\ - 0.12 \end{matrix})

1 publication

Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

11:38:59.0

Dec₂₀₀₀

-03:54:20.1

Alternate Names

EPIC 201208431, 2MASS J11385895-0354202, WISE J113858.93-035420.0

No remarks

No link

Simbad
Most recent references (ADS)

Planet K2-4 b

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks No remark

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Planet K2-4 b

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks No remark

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Related publications

Evolution of the radius valley around low mass stars from Kepler and K2

The Revised TESS Input Catalog and Candidate Target List

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars II: Planetary Systems Observed During Campaigns 1-7

Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation