Planet TOI-5789 Ac

Detailed information about planet TOI-5789 Ac and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

TOI-5789 Ac

Planet Status

Confirmed

Discovered in

2025

Publication Status

Published in a refereed paper

Update

2025-10-15

Mass

0.016 (\pm 0.0016)

M_J 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Mass*sin(i)

—

Semi-Major Axis

0.1009 (\pm 0.0013)

AU 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Orbital Period

12.927748 day 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Eccentricity

0.0 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Angular distance

—

ω

—

T_peri

—

Radius

0.2552 (\begin{matrix} + 0.0161 \\ - 0.0134 \end{matrix})

R_J 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Inclination

88.02 (\pm 0.13)

deg 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

0.903 (\pm 0.015)

1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Time V_r=0

—

Velocity Semiamplitude K

— 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Calculated temperature

718.0 (\pm 15.0)

K 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Star

Name

TOI-5789 A

Distance

20.44 (\pm 0.0095)

pc 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Spectral type

K1V

Apparent magnitude V

7.3

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.821 (\begin{matrix} + 0.032 \\ - 0.027 \end{matrix})

M_Sun 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Age

9.4 (\begin{matrix} + 2.0 \\ - 3.5 \end{matrix})

Gyr 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Effective temperature

5185.0 (\pm 80.0)

K 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Radius

0.833 (\pm 0.023)

R_Sun 1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Metallicity [Fe/H]

-0.12 (\pm 0.08)

1 publication

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

20:11:06.1

Dec₂₀₀₀

+16:11:16.8

Alternate Names

HIP 99452, HD 191785, GJ 783.2 A

An M dwarf companion star (G 143-35 or GJ 783.2 B, spT M4V) lies 2120 AUs away.

No link

Simbad
Most recent references (ADS)

Planet TOI-5789 Ac

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 4 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Planet TOI-5789 Ac

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 4 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

The GAPS programme at TNG XYZ. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)