Planet HD 115954 Ab

Detailed information about planet HD 115954 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HD 115954 Ab

Planet Status

Confirmed

Discovered in

2021

Update

2024-08-28

Mass

8.5 (\begin{matrix} + 0.6 \\ - 0.4 \end{matrix})

M_J 1 publication

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

Mass*sin(i)

8.29 (\begin{matrix} + 0.75 \\ - 0.58 \end{matrix})

M_J 1 publication

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

Semi-Major Axis

4.5 (\begin{matrix} + 0.2 \\ - 0.1 \end{matrix})

AU 1 publication

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

Orbital Period

3258.0 (\begin{matrix} + 179.0 \\ - 190.0 \end{matrix})

day 1 publication

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

Eccentricity

0.46 (\pm 0.03)

1 publication

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

ω

173.0 (\begin{matrix} + 7.0 \\ - 8.0 \end{matrix})

deg 1 publication

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

T_peri

—

Radius

—

Inclination

39.0 (\begin{matrix} + 13.0 \\ - 8.0 \end{matrix})

deg 1 publication

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

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

110.7 (\begin{matrix} + 6.9 \\ - 6.1 \end{matrix})

m/s 1 publication

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

Calculated temperature

144.9 (\begin{matrix} + 8.1 \\ - 13.0 \end{matrix})

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

Alternative inclination estimate is 127 ± 4° (Philipot et al. 2023).

No link

Star

Name

HD 115954 A

Distance

218.39 (\pm 2.0)

Spectral type

G0V

Apparent magnitude V

8.34

Mass

1.18 (\pm 0.06)

M_Sun 1 publication

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

Age

— 1 publication

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

Effective temperature

5957.0 (\pm 26.0)

Radius

1.213 (\pm 0.083)

R_Sun 1 publication

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

Metallicity [Fe/H]

0.34 (\pm 0.02)

1 publication

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

13:19:56.0

Dec₂₀₀₀

+38:22:09.0

Alternate Names

HIP 65042

A K dwarf companion star lies 5408 AUs away.

No link

Simbad
Most recent references (ADS)

Planet HD 115954 Ab

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Planet HD 115954 Ab

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

Gaia Search for (sub)stellar Companions of Exoplanet Hosts

Updated characterization of long-period single companion by combining radial velocity, relative astrometry, and absolute astrometry

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits