Planet 2MASS J0444+2512 b

Detailed information about planet 2MASS J0444+2512 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

2MASS J0444+2512 b

Planet Status

Candidate

Discovered in

2025

Publication Status

Published in a refereed paper

Update

2025-05-14

Mass

0.013 (\pm 0.0116)

M_J 1 publication

Hints of Disk Substructure in the First Brown Dwarf with a Dynamical Mass Constraint

Mass*sin(i)

—

Semi-Major Axis

2.8 AU 1 publication

Hints of Disk Substructure in the First Brown Dwarf with a Dynamical Mass Constraint

Orbital Period

—

Eccentricity

—

Angular distance

0.02

arcsec

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Kinematic

Mass Meas. Method

Theoretical

Radius Meas. Method

—

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

2MASS J04442713+2512164 b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

The brown dwarf host is likely surrounded by a dust ring (m_disk = 1.3 M_Jup, i = 49.9 ± 0.5°) extending between 98.1 and 116.0 milliarcseconds (14-16 AUs) with a gap width of 20 milliarcseconds (∼2.8 AUs). Additionally if there is a gap-ring pair located in that position, then a planet able to carve the gap would have an estimated mass between 0.3 and 7.7 M_E (Santamaria-Miranda et al. 2025).

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