Planet K2-266 Ab

Detailed information about planet K2-266 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

K2-266 Ab

Planet Status

Confirmed

Discovered in

2018

Update

2024-06-11

Mass

0.0355 (\begin{matrix} + 0.03601 \\ - 0.02053 \end{matrix})

M_J

Mass*sin(i)

0.0343 (\begin{matrix} + 0.03461 \\ - 0.01982 \end{matrix})

M_J

Semi-Major Axis

0.01306 (\begin{matrix} + 0.0002 \\ - 0.00021 \end{matrix})

AU 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Orbital Period

0.658524 (\begin{matrix} + 1.7e-05 \\ - 1.7e-05 \end{matrix})

day 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Eccentricity

—

ω

—

T_peri

2457945.7235 (\begin{matrix} + 0.0032 \\ - 0.003 \end{matrix})

JD 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Radius

0.294 (\begin{matrix} + 0.161 \\ - 0.116 \end{matrix})

R_J 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Inclination

75.32 (\begin{matrix} + 0.62 \\ - 0.7 \end{matrix})

deg 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Detection Method

Primary Transit

Mass Meas. Method

—

Radius Meas. Method

Primary Transit

Primary transit

2457950.3332 (\begin{matrix} + 0.00031 \\ - 0.003 \end{matrix})

JD 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Secondary transit

—

λ

—

Impact Parameter b

1.011 (\begin{matrix} + 0.027 \\ - 0.024 \end{matrix})

1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Time V_r=0

—

Velocity Semiamplitude K

10.3 (\begin{matrix} + 10.0 \\ - 5.9 \end{matrix})

m/s 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Calculated temperature

1515.0 (\begin{matrix} + 18.0 \\ - 18.0 \end{matrix})

K 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

2MASS J10314450+0056152 b, EPIC 248435473 A b, EPIC 248435473 b, K2-266 A b, WISE J103144.54+005614.5 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

K2-266 A

Distance

77.5586 (\begin{matrix} + 0.3581 \\ - 0.3549 \end{matrix})

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

K7V

Apparent magnitude V

—

Mass

0.68 (\begin{matrix} + 0.0679 \\ - 0.094 \end{matrix})

M_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Age

8.4 (\begin{matrix} + 4.1 \\ - 4.8 \end{matrix})

Gyr 1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Effective temperature

4362.0 (\begin{matrix} + 110.463 \\ - 137.357 \end{matrix})

K 1 publication

The Revised TESS Input Catalog and Candidate Target List

Radius

0.7337 (\begin{matrix} + 0.0678 \\ - 0.0572 \end{matrix})

R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

-0.12 (\begin{matrix} + 0.4 \\ - 0.42 \end{matrix})

1 publication

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

10:31:44.5

Dec₂₀₀₀

+00:56:15.3

Alternate Names

EPIC 248435473, WISE J103144.54+005614.5, EPIC 248435473 A, TIC 374180079, 2MASS J10314450+0056152

K2-266 forms a widely separated (a = 3316 AUs) binary system with a late K to early M dwarf companion (Mugrauer 2019).

No link

Simbad
Most recent references (ADS)

Planet K2-266 Ab

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks No remark

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 4 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Planet K2-266 Ab

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks No remark

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 4 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

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The Origin of Systems of Tightly Packed Inner Planets with Misaligned, Ultra-Short-Period Companions

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

A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet