Planet HIP 8923 b

Detailed information about planet HIP 8923 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HIP 8923 b

Planet Status

Confirmed

Discovered in

2026

Publication Status

—

Update

2026-03-16

Mass

9.98 (\begin{matrix} + 0.8 \\ - 0.16 \end{matrix})

M_J 1 publication

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

Mass*sin(i)

—

Semi-Major Axis

5.9 (\pm 0.2)

AU 1 publication

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

Orbital Period

5160.0 (\begin{matrix} + 150.0 \\ - 240.0 \end{matrix})

day 1 publication

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

Eccentricity

0.01 (\begin{matrix} + 0.03 \\ - 0.01 \end{matrix})

1 publication

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

Angular distance

—

ω

—

T_peri

—

Radius

—

Inclination

24.8 (\pm 4.0)

deg 1 publication

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

Detection Method

Radial Velocity

Mass Meas. Method

Astrometry

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

HD 11731 b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

No remarks

No link

Star

Name

HIP 8923

Distance

65.87 (\pm 0.11)

pc 2 publications

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars
The Revised TESS Input Catalog and Candidate Target List

Spectral type

G0V

Apparent magnitude V

8.24

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.01 (\pm 0.04)

M_Sun 2 publications

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars
The Revised TESS Input Catalog and Candidate Target List

Age

1.73 (\begin{matrix} + 1.14 \\ - 1.22 \end{matrix})

Gyr 1 publication

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

Effective temperature

5980.0 (\pm 51.0)

K 2 publications

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars
The Revised TESS Input Catalog and Candidate Target List

Radius

1.321 (\pm 0.064)

R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

0.42 (\pm 0.05)

1 publication

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

01:54:54.0

Dec₂₀₀₀

-11:30:40.8

Alternate Names

HD 11731

No remarks

No link

Simbad
Most recent references (ADS)

Planet HIP 8923 b

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 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 HIP 8923 b

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 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

Cold giant discoveries from a joint radial-velocity and astrometry framework EMPEROR II -- Jupiter analogues around metal-rich CHEPS stars

The Revised TESS Input Catalog and Candidate Target List