Planet HD 171488 b

Detailed information about planet HD 171488 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HD 171488 b

Planet Status

Candidate

Discovered in

2009

Publication Status

Published in a refereed paper

Update

2025-10-18

Mass

30.0 (\pm 10.0)

M_J 1 publication

Imaging Faint Brown Dwarf Companions Close to Bright Stars with a Small, Well-corrected Telescope Aperture

Mass*sin(i)

—

Semi-Major Axis

115.0 AU 1 publication

Imaging Faint Brown Dwarf Companions Close to Bright Stars with a Small, Well-corrected Telescope Aperture

Orbital Period

—

Eccentricity

—

Angular distance

2.7

arcsec

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Imaging

Mass Meas. Method

Spectrum

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

2400.0 (\pm 100.0)

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

V889 Her b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Putative spectral type M7.

No link

Star

Name

HD 171488

Distance

35.338 (\pm 0.059)

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

G2V

Apparent magnitude V

7.45

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.04 (\pm 0.13)

M_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Age

0.04 (\pm 0.01)

Gyr 1 publication

Imaging Faint Brown Dwarf Companions Close to Bright Stars with a Small, Well-corrected Telescope Aperture

Effective temperature

5798.0 (\pm 127.2)

K 1 publication

The Revised TESS Input Catalog and Candidate Target List

Radius

1.023 (\pm 0.051)

R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

-0.2154

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

18:34:20.1

Dec₂₀₀₀

+18:41:24.2

Alternate Names

V889 Her

From Gaia DR3:

l = 268.8063907160974 deg
b = -58.32304949495978 deg
Parallax = 57.58793522821285 +/- 0.03914351 mas
Proper motion in ra = 333.6743001683433 mas/y
Proper motion in dec = 219.43351334869985 mas/y

No link

Simbad
Most recent references (ADS)

Planet HD 171488 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 0 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Planet HD 171488 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 0 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

The variable magnetic field of V889 Her and the challenge of detecting exoplanets around young Suns using Gaussian process regression

The Revised TESS Input Catalog and Candidate Target List

Imaging Faint Brown Dwarf Companions Close to Bright Stars with a Small, Well-corrected Telescope Aperture