Planet HD 181234 Ab

Detailed information about planet HD 181234 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HD 181234 Ab

Planet Status

Confirmed

Discovered in

2019

Publication Status

Published in a refereed paper

Update

2025-08-13

Mass

10.9 (\begin{matrix} + 4.2 \\ - 1.5 \end{matrix})

M_J 2 publications

Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and A Validation of Gaia Non-Single Star Solutions
3D Selection of 167 Substellar Companions to Nearby Stars

Mass*sin(i)

8.37 (\pm 0.36)

M_J 1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Semi-Major Axis

7.57 (\pm 0.14)

AU 3 publications

Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and A Validation of Gaia Non-Single Star Solutions
3D Selection of 167 Substellar Companions to Nearby Stars
The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Orbital Period

7515.35 (\begin{matrix} + 76.65 \\ - 73.0 \end{matrix})

day 4 publications

Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and A Validation of Gaia Non-Single Star Solutions
3D Selection of 167 Substellar Companions to Nearby Stars
3D Selection of 167 Substellar Companions to Nearby Stars
The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Eccentricity

0.808 (\begin{matrix} + 0.11 \\ - 0.09 \end{matrix})

2 publications

Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and A Validation of Gaia Non-Single Star Solutions
The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Angular distance

—

ω

95.367 (\begin{matrix} + 2.558 \\ - 2.643 \end{matrix})

deg 2 publications

3D Selection of 167 Substellar Companions to Nearby Stars
The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

T_peri

2457668.7 (\begin{matrix} + 5.5 \\ - 5.0 \end{matrix})

JD 1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Radius

—

Inclination

79.0 (\begin{matrix} + 35.0 \\ - 21.0 \end{matrix})

deg 2 publications

Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and A Validation of Gaia Non-Single Star Solutions
3D Selection of 167 Substellar Companions to Nearby Stars

Detection Method

Radial Velocity, Astrometry

Mass Meas. Method

Astrometry

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

126.925 (\begin{matrix} + 1.577 \\ - 1.555 \end{matrix})

m/s 2 publications

3D Selection of 167 Substellar Companions to Nearby Stars
The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

HIP 95015 b, HIP 95015 Ab

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

03 Mar 2019: Radial velocity and additional data
See also Planets in Binaries webpage.

No link

Star

Name

HD 181234 A

Distance

47.84 (\pm 0.1)

pc 1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Spectral type

G5V

Apparent magnitude V

8.59

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.01 (\pm 0.06)

M_Sun 1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Age

6.32 (\pm 2.58)

Gyr 1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Effective temperature

5386.0 (\pm 60.0)

K 1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Radius

1.05 (\pm 0.07)

R_Sun 1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Metallicity [Fe/H]

0.32 (\pm 0.05)

1 publication

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

19:20:00.0

Dec₂₀₀₀

-09:19:25.0

Alternate Names

NSN 145 A, HIP 95015

An M dwarf companion star lies 247 AUs away (Michel & Mugrauer 2021, 2024).

No link

Simbad
Most recent references (ADS)

Planet HD 181234 Ab

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 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Planet HD 181234 Ab

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 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and A Validation of Gaia Non-Single Star Solutions

Gaia Search for (sub)stellar Companions of Exoplanet Hosts

Multiplicity of stars with planets in the solar neighbourhood

3D Selection of 167 Substellar Companions to Nearby Stars

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

The CORALIE survey for southern extrasolar planets. XVIII. Four new massive planets and two low mass brown dwarfs at separation larger than 5 AU