Planet UPM J1040-3551 Bb

Detailed information about planet UPM J1040-3551 Bb and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

UPM J1040-3551 Bb

Planet Status

Confirmed

Discovered in

2025

Publication Status

Published in a refereed paper

Update

2025-06-02

Mass

18.0 (\pm 9.0)

M_J 1 publication

Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

Mass*sin(i)

—

Semi-Major Axis

1655.6 (\pm 0.3)

Orbital Period

— 1 publication

Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

Eccentricity

—

Angular distance

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Imaging

Mass Meas. Method

Spectrum

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

CWISE J104053-355029 b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Spectral type T8. Unresolved substellar binary, separation less or equal to 10 AUs.

No link

Star

Name

UPM J1040-3551

Distance

25.283 (\pm 0.013)

pc 2 publications

The Revised TESS Input Catalog and Candidate Target List
Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

Spectral type

M4V

Apparent magnitude V

14.6

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.235 (\pm 0.02)

M_Sun 2 publications

The Revised TESS Input Catalog and Candidate Target List
Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

Age

1.15 (\pm 0.85)

Gyr 1 publication

Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

Effective temperature

3200.0 (\pm 50.0)

K 2 publications

The Revised TESS Input Catalog and Candidate Target List
Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

Radius

0.262 (\pm 0.0079)

R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

0.0 (\pm 0.1)

2 publications

89 New Ultracool Dwarf Co-Moving Companions Identified With The Backyard Worlds: Planet 9 Citizen Science Project
Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

10:40:55.5

Dec₂₀₀₀

-35:51:31.1

Alternate Names

No remarks

No link

Simbad
Most recent references (ADS)

Planet UPM J1040-3551 Bb

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 2 planets

Remarks No remark

Other web pages No page

More data 2 references

Planet UPM J1040-3551 Bb

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 2 planets

Remarks No remark

Other web pages No page

More data 2 references

Related publications

Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple

89 New Ultracool Dwarf Co-Moving Companions Identified With The Backyard Worlds: Planet 9 Citizen Science Project

The Revised TESS Input Catalog and Candidate Target List