Planet TOI-2109 b

Detailed information about planet TOI-2109 b and its parameters.

Planet parameters Publications Observability Predictor Exo3D

Planet

Name

TOI-2109 b

Planet Status

Confirmed

Discovered in

2021

Publication Status

—

Update

2025-06-26

Mass

5.02 (\pm 0.75)

M_J 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Mass*sin(i)

—

Semi-Major Axis

—

Orbital Period

0.67247414 (\pm 2.8e-07)

day 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Eccentricity

0.04 (\begin{matrix} + 0.15 \\ - 0.0 \end{matrix})

1 publication

Hints of a close outer companion to the ultra-hot Jupiter TOI-2109 b

Angular distance

—

ω

90.0 (\begin{matrix} + 360.0 \\ - 0.0 \end{matrix})

deg 1 publication

Hints of a close outer companion to the ultra-hot Jupiter TOI-2109 b

T_peri

—

Radius

1.347 (\pm 0.047)

R_J 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Inclination

—

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

—

Secondary transit

—

λ

1.7 (\pm 1.7)

deg 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

—

Measured temperature

3631.0 K 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Hottest point longitude

69.0 deg

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Reference
CO
CO	Measurements	Detected	2025 - CONT D.
Fe I
Fe I	Measurements	Detected	2025 - CONT D.

No remarks

No link

Star

Name

TOI-2109

Distance

264.0 (\pm 2.6)

Spectral type

F0IV-V

Apparent magnitude V

10.0

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.447 (\pm 0.077)

M_Sun 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Age

—

Effective temperature

6500.0 K 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Radius

1.698 (\pm 0.06)

R_Sun 1 publication

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Metallicity [Fe/H]

—

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

16:52:45.0

Dec₂₀₀₀

+16:34:48.0

Alternate Names

—

No remarks

No link

Simbad
Most recent references (ADS)

Planet TOI-2109 b

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 2 molecules

Remarks No remark

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Planet TOI-2109 b

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 2 molecules

Remarks No remark

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Related publications

JWST and HST Confirm Transit Timing Variations for the Ultra-Hot Jupiter TOI-2109 b

Retrieving day- and nightside atmospheric properties of the ultra-hot Jupiter TOI-2109b. Detection of Fe and CO emission lines and evidence for inefficient heat transport

Orbital Decay of the Ultra-hot Jupiter TOI-2109b: Tidal Constraints and Transit-timing Analysis

Hints of a close outer companion to the ultra-hot Jupiter TOI-2109 b

Statistical and Radio Analysis of Exoplanets and Their Host Stars

TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit