Planet K2-247 Ab

Detailed information about planet K2-247 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

K2-247 Ab

Planet Status

Confirmed

Discovered in

2018

Publication Status

Published in a refereed paper

Update

2025-09-04

Mass

—

Mass*sin(i)

—

Semi-Major Axis

0.0304 (\begin{matrix} + 0.0004 \\ - 0.0004 \end{matrix})

AU 1 publication

44 Validated Planets from K2 Campaign 10

Orbital Period

2.25021 (\begin{matrix} + 0.00033 \\ - 0.00036 \end{matrix})

day 1 publication

44 Validated Planets from K2 Campaign 10

Eccentricity

—

Angular distance

—

ω

—

T_peri

—

Radius

0.189 (\begin{matrix} + 0.017 \\ - 0.014 \end{matrix})

R_J 1 publication

44 Validated Planets from K2 Campaign 10

Inclination

—

Detection Method

Primary Transit

Mass Meas. Method

—

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

0.43 (\begin{matrix} + 0.34 \\ - 0.3 \end{matrix})

1 publication

44 Validated Planets from K2 Campaign 10

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

979.0 (\begin{matrix} + 52.0 \\ - 51.0 \end{matrix})

K 1 publication

44 Validated Planets from K2 Campaign 10

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

WISE J123534.44-100409.2 b, EPIC 228725791 b, EPIC 228725791.01, 2MASS J12353448-1004091 b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

1 Sep 2025: See also Planets in Binaries webpage.

No link

Star

Name

K2-247 A

Distance

260.2 (\begin{matrix} + 2.1 \\ - 2.1 \end{matrix})

pc 1 publication

44 Validated Planets from K2 Campaign 10

Spectral type

K4V

Apparent magnitude V

—

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.74 (\begin{matrix} + 0.03 \\ - 0.03 \end{matrix})

M_Sun 1 publication

44 Validated Planets from K2 Campaign 10

Age

—

Effective temperature

4667.0 (\begin{matrix} + 305.0 \\ - 183.0 \end{matrix})

K 1 publication

44 Validated Planets from K2 Campaign 10

Radius

0.69 (\begin{matrix} + 0.02 \\ - 0.01 \end{matrix})

R_Sun 1 publication

44 Validated Planets from K2 Campaign 10

Metallicity [Fe/H]

-0.08 (\begin{matrix} + 0.22 \\ - 0.22 \end{matrix})

1 publication

44 Validated Planets from K2 Campaign 10

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

12:35:34.5

Dec₂₀₀₀

-10:04:09.2

Alternate Names

WISE J123534.44-100409.2, EPIC 228725791, 2MASS J12353448-1004091

Primary component of a triple system including an inner M dwarf companion (Gaia DR3 3578596339057283072, G = 18.66) 2.77 arcseconds away (732 AUs at 260 pc) and an additional, fainter outer one (Gaia DR3 3578596132898852992, G = 19.57) 31.7 arcseconds away (8,240 AUs at 260 pc).

No link