Planet 2MASS J1253+2734 b

Detailed information about planet 2MASS J1253+2734 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

2MASS J1253+2734 b

Planet Status

Confirmed

Discovered in

2021

Publication Status

Published in a refereed paper

Update

2025-07-21

Mass

—

Mass*sin(i)

8.3 (\begin{matrix} + 1.8 \\ - 0.2 \end{matrix})

M_J 1 publication

Close substellar-mass companions in stellar wide binaries: discovery and characterization with APOGEE and Gaia DR2

Semi-Major Axis

—

Orbital Period

24.31 (\pm 0.021)

day 1 publication

Close substellar-mass companions in stellar wide binaries: discovery and characterization with APOGEE and Gaia DR2

Eccentricity

0.681 (\pm 0.053)

1 publication

Close substellar-mass companions in stellar wide binaries: discovery and characterization with APOGEE and Gaia DR2

Angular distance

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Radial Velocity

Mass Meas. Method

Radial Velocity

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

1070.0 (\begin{matrix} + 1450.0 \\ - 170.0 \end{matrix})

m/s 1 publication

Close substellar-mass companions in stellar wide binaries: discovery and characterization with APOGEE and Gaia DR2

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

2MASS J12530085+2734189 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

2MASS J1253+2734

Distance

196.184 (\pm 1.05)

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

K5V

Apparent magnitude V

13.8

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.71 (\pm 0.083)

M_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Age

—

Effective temperature

4535.0 (\pm 134.0)

K 1 publication

The Revised TESS Input Catalog and Candidate Target List

Radius

0.633 (\pm 0.053)

R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

-0.256 (\pm 0.0079)

1 publication

The Revised TESS Input Catalog and Candidate Target List

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

12:53:01.0

Dec₂₀₀₀

+27:34:19.0

Alternate Names

UCAC4 588-049886, 2MASS J12530085+2734189

Secondary component of a widely separated (a = 138 arcseconds = 27,600 AUs at 200 pc) binary system with each star identified as candidate exoplanet host. Primary star is 2MASS J12525132+2735131.
For this reason Lewis et al. (2022) regards the system ad “quadruple”.

No link