Planet K2-122 Ab

Detailed information about planet K2-122 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

K2-122 Ab

Planet Status

Confirmed

Discovered in

2017

Publication Status

Published in a refereed paper

Update

2024-07-30

Mass

—

Mass*sin(i)

—

Semi-Major Axis

0.0285 (\begin{matrix} + 0.0002 \\ - 0.0002 \end{matrix})

AU 1 publication

Sixty Validated Planets from K2 Campaigns 5-8

Orbital Period

2.219282 (\begin{matrix} + 0.000128 \\ - 0.00013 \end{matrix})

day 1 publication

Sixty Validated Planets from K2 Campaigns 5-8

Eccentricity

0.21 1 publication

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

Angular distance

—

ω

60.8 deg 1 publication

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

T_peri

—

Radius

0.108 (\begin{matrix} + 0.007 \\ - 0.007 \end{matrix})

R_J 1 publication

Sixty Validated Planets from K2 Campaigns 5-8

Inclination

86.39 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

2457144.048 (\pm 0.001)

JD 1 publication

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

Secondary transit

—

λ

—

Impact Parameter b

0.39 (\begin{matrix} + 0.31 \\ - 0.26 \end{matrix})

1 publication

Sixty Validated Planets from K2 Campaigns 5-8

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

814.0 (\begin{matrix} + 10.0 \\ - 10.0 \end{matrix})

K 1 publication

Sixty Validated Planets from K2 Campaigns 5-8

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

K2-122 b, 2MASS J08255432+2021344 b, EPIC 212006344 b, EPIC 212006344.01, WISE J082554.29+202133.8 b, TIC 14635562 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

K2-122 A

Distance

72.0444 (\pm 0.2532)

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

M0V

Apparent magnitude V

13.1

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.63 (\pm 0.02)

M_Sun 2 publications

The Revised TESS Input Catalog and Candidate Target List
The K2-OjOS Project: New and revisited planets and candidates in K2 campaigns 5, 16, & 18

Age

—

Effective temperature

4009.0 (\begin{matrix} + 47.0 \\ - 44.0 \end{matrix})

K 1 publication

The Revised TESS Input Catalog and Candidate Target List

Radius

0.59 (\pm 0.01)

R_Sun 2 publications

The Revised TESS Input Catalog and Candidate Target List
The K2-OjOS Project: New and revisited planets and candidates in K2 campaigns 5, 16, & 18

Metallicity [Fe/H]

0.32 (\begin{matrix} + 0.07 \\ - 0.06 \end{matrix})

1 publication

The K2-OjOS Project: New and revisited planets and candidates in K2 campaigns 5, 16, & 18

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

08:25:54.3

Dec₂₀₀₀

+20:21:34.5

Alternate Names

K2-122, WISE J082554.29+202133.8, EPIC 212006344 A, TIC 14635562, 2MASS J08255432+2021344, EPIC 212006344

Mugrauer (2019): K2-122 has an M dwarf companion star 1,449 AUs away.

No link

Simbad
Most recent references (ADS)

Planet K2-122 Ab

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 Some remarks

Other web pages No page

More data 2 references

Planet K2-122 Ab

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 Some remarks

Other web pages No page

More data 2 references

Related publications

Multiplicity of stars with planets in the solar neighbourhood

Gaia Search for (sub)stellar Companions of Exoplanet Hosts

The K2-OjOS Project: New and revisited planets and candidates in K2 campaigns 5, 16, & 18

Search for stellar companions of exoplanet host stars by exploring the second ESA-Gaia data release

The Revised TESS Input Catalog and Candidate Target List

Sixty Validated Planets from K2 Campaigns 5-8

Exoplanets around Low-mass Stars Unveiled by K2

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

Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars I: Classifying Low-mass Host Stars Observed During Campaigns 1-7