Planet LTT 3780 b

Detailed information about planet LTT 3780 b and its parameters.

Planet parameters Publications Observability Predictor Exo3D

Planet

Name

LTT 3780 b

Planet Status

Confirmed

Discovered in

2020

Publication Status

—

Update

2025-07-29

Mass

0.00774 (\pm 0.0006)

M_J 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Mass*sin(i)

—

Semi-Major Axis

0.01195 (\pm 0.00029)

AU 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Orbital Period

0.76837931 (\pm 4e-07)

day 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Eccentricity

0.0 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Angular distance

—

ω

—

T_peri

—

Radius

0.11821 (\pm 0.00517)

R_J 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Inclination

86.1 (\begin{matrix} + 0.9 \\ - 0.7 \end{matrix})

deg 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

2459606.58098 (\begin{matrix} + 0.0003 \\ - 0.0004 \end{matrix})

JD 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Secondary transit

—

λ

—

Impact Parameter b

0.462 (\begin{matrix} + 0.063 \\ - 0.094 \end{matrix})

1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Time V_r=0

—

Velocity Semiamplitude K

3.24 (\pm 0.2)

m/s 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Calculated temperature

903.0 (\pm 26.0)

K 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

TOI-732 Ab, TOI-732.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Star

Name

LTT 3780

Distance

22.04 (\pm 0.03)

pc 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Spectral type

M3V

Apparent magnitude V

—

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.38 (\begin{matrix} + 0.024 \\ - 0.034 \end{matrix})

M_Sun 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Age

3.1 (\begin{matrix} + 6.2 \\ - 1.0 \end{matrix})

Gyr 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Effective temperature

3358.0 (\pm 92.0)

K 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Radius

0.38 (\pm 0.012)

R_Sun 1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Metallicity [Fe/H]

0.06 (\pm 0.1)

1 publication

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

10:18:34.8

Dec₂₀₀₀

-11:43:04.2

Alternate Names

TOI-732, TIC 36724087

A fainter M dwarf companion (LP 729-55) lies 347 AUs away (Michel & Mugrauer 2021).

No link

Simbad
Most recent references (ADS)

Planet LTT 3780 b

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 Some remarks

Other web pages No page

More data 2 references

Planet LTT 3780 b

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 Some remarks

Other web pages No page

More data 2 references

Related publications

A Search for Narrowband Technosignatures from LTT 3780 with the Allen Telescope Array and the Karl G. Jansky Very Large Array

Stellar Ages of M Dwarf Hosts of Temperate Sub-Neptunes

Super-Earth masses and stellar abundances from NIRPS reveal tentative evidence for water-rich formation around M dwarfs

A high stellar multiplicity rate amongst TESS planet candidates in the Neptunian desert using Gaia DR3 astrometry

Hot Rocks Survey IV: Emission from LTT 3780 b is consistent with a bare rock

Characterising M dwarf host stars of two candidate Hycean worlds

The Search for the Inbetweeners: How packed are TESS planetary systems?

Gaia Search for (sub)stellar Companions of Exoplanet Hosts

Characterising TOI-732 b and c: new insights on the M-dwarf radius and density valley

Search for (sub)stellar companions of exoplanet hosts by exploring the second ESA-Gaia data release

Constraints on Aquatic Photosynthesis for Terrestrial Planets Around Other Stars

A pair of TESS planets spanning the radius valley around the nearby mid-M dwarf LTT 3780

The CARMENES search for exoplanets around M dwarfs. Two planets on opposite sides of the radius gap transiting the nearby M dwarf LTT 3780

Debris Disks in Multi-Planet Systems: Are Our Inferences Compromised by Unseen Planets?