Planet EQ J1959-3338

Detailed information about planet EQ J1959-3338 and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

EQ J1959-3338

Planet Status

Confirmed

Discovered in

2011

Publication Status

—

Update

2025-07-17

Mass

40.0 (\pm 10.0)

M_J 1 publication

Detection of J-band photometric periodicity in the T8 dwarfs 2MASS J09393548-2448279 and EQ J1959-3338

Mass*sin(i)

—

Semi-Major Axis

—

Orbital Period

—

Eccentricity

—

Angular distance

—

ω

—

T_peri

—

Radius

0.85 (\pm 0.05)

R_J 1 publication

Detection of J-band photometric periodicity in the T8 dwarfs 2MASS J09393548-2448279 and EQ J1959-3338

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

—

Measured temperature

805.0 K 1 publication

Detection of J-band photometric periodicity in the T8 dwarfs 2MASS J09393548-2448279 and EQ J1959-3338

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

CNS5 4944, TIC 211252012, 2MASS J19590564-3338314

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Reference
KCl
KCl	Modeling	Vertical profile	2025 - MILES-PAEZ P.
Na2S
Na2S	Modeling	Vertical profile	2025 - MILES-PAEZ P.

Spectral type T8. Age 1-10 Gyrs.

No link

System without star

Distance

11.7 (\pm 0.3)

RA₂₀₀₀

19:59:05.6

Dec₂₀₀₀

-33:38:31.4

Planet EQ J1959-3338

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 2 molecules

Remarks Some remarks

Other web pages No page

System without star

System informations 3 parameters

Planet EQ J1959-3338

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 2 molecules

Remarks Some remarks

Other web pages No page

System without star

System informations 3 parameters

Related publications

Detection of J-band photometric periodicity in the T8 dwarfs 2MASS J09393548-2448279 and EQ J1959-3338

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Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the “Planetary” Mass Regime

WISE J061213.85-303612.5: a new T-dwarf binary candidate

Spitzer photometry of WISE-selected brown dwarf and hyper-luminous infrared galaxy candidates

Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function

The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)