Planet JADES-GS-BD-5

Detailed information about planet JADES-GS-BD-5 and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

JADES-GS-BD-5

Planet Status

Confirmed

Discovered in

2026

Publication Status

—

Update

2026-11-06

Mass

8.2 (\begin{matrix} + 2.8 \\ - 2.5 \end{matrix})

M_J 2 publications

JWST/NIRSpec Spectra for Three Ultracool Brown Dwarfs Detected in Extragalactic Surveys: Further Evidence for Phosphine Absorption
The cold substellar frontier in JWST Extragalactic surveys: a robust parallax measurement yields the most distant known ultra-cold Y dwarf

Mass*sin(i)

—

Semi-Major Axis

—

Orbital Period

—

Eccentricity

—

Angular distance

—

ω

—

T_peri

—

Radius

1.04 (\begin{matrix} + 0.03 \\ - 0.04 \end{matrix})

R_J 1 publication

The cold substellar frontier in JWST Extragalactic surveys: a robust parallax measurement yields the most distant known ultra-cold Y dwarf

Inclination

—

Detection Method

Imaging

Mass Meas. Method

Spectrum

Radius Meas. Method

Flux

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

301.0 (\begin{matrix} + 17.0 \\ - 16.0 \end{matrix})

K 3 publications

JWST/NIRSpec Spectra for Three Ultracool Brown Dwarfs Detected in Extragalactic Surveys: Further Evidence for Phosphine Absorption
JADES: An Abundance of Ultra-Distant T- and Y-Dwarfs in Deep Extragalactic Data
The cold substellar frontier in JWST Extragalactic surveys: a robust parallax measurement yields the most distant known ultra-cold Y dwarf

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

4.28 1 publication

The cold substellar frontier in JWST Extragalactic surveys: a robust parallax measurement yields the most distant known ultra-cold Y dwarf

Alternate Names

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Reference
CH4
CH4	Modeling	Detected	2026 - LIU F.-Y.F.
CO
CO	Modeling	Detected	2026 - LIU F.-Y.F.
CO2
CO2	Modeling	Detected	2026 - LIU F.-Y.F.
H2O
H2O	Modeling	Detected	2026 - LIU F.-Y.F.

Hainline et al. (2026), Liu et al. (2026): Spectral type Y1.5. Age 3.9-4 Gyrs. [M/H] = -0.41.

No link

System without star

Distance

64.0 (\begin{matrix} + 6.0 \\ - 5.0 \end{matrix})

RA₂₀₀₀

03:32:20.2

Dec₂₀₀₀

-27:50:21.7

Planet JADES-GS-BD-5

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 4 molecules

Remarks Some remarks

Other web pages No page

System without star

System informations 3 parameters

Planet JADES-GS-BD-5

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 4 molecules

Remarks Some remarks

Other web pages No page

System without star

System informations 3 parameters

Related publications

Overview of the JWST Advanced Deep Extragalactic Survey (JADES)

JADES: An Abundance of Ultra-Distant T- and Y-Dwarfs in Deep Extragalactic Data

The cold substellar frontier in JWST Extragalactic surveys: a robust parallax measurement yields the most distant known ultra-cold Y dwarf

JWST/NIRSpec Spectra for Three Ultracool Brown Dwarfs Detected in Extragalactic Surveys: Further Evidence for Phosphine Absorption