Planet HD 181720 b

Detailed information about planet HD 181720 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HD 181720 b

Planet Status

Confirmed

Discovered in

2009

Publication Status

—

Update

2014-07-10

Mass

> 12.12

M_J

Mass*sin(i)

0.37

M_J 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Semi-Major Axis

1.78 AU 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Orbital Period

956.0 (\pm 14.0)

day 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Eccentricity

0.26 (\pm 0.06)

1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Angular distance

0.031786 arcsec

ω

177.0 (\pm 12.0)

deg 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

T_peri

2453631.0 (\pm 30.0)

JD 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Radius

—

Inclination

1.75 (\begin{matrix} + 1.65 \\ - 1.65 \end{matrix})

deg 1 publication

Mass constraints on substellar companions candidates from the re-reduced Hipparcos intermediate astrometric data: Nine confirmed planets and two confirmed brown dwarfs

Detection Method

Radial Velocity

Mass Meas. Method

—

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

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

11 Jan 2011: Reffert et al. 2011 give a mass range derived from astrometry 6.1 - 217.9 M_Jup at the 3 σ level.
The errors on inclination are at the 3 σ level (Reffert et al. 2011)

No link

Star

Name

HD 181720

Distance

56.0 (\pm 4.0)

pc 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Spectral type

G1V

Apparent magnitude V

7.86

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.92

M_Sun 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Age

—

Effective temperature

5781.0 (\pm 18.0)

K 1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Radius

—

Metallicity [Fe/H]

-0.53 (\pm 0.02)

1 publication

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

19:22:53.0

Dec₂₀₀₀

-32:55:09.0

Alternate Names

—

No remarks

No link

Simbad
Most recent references (ADS)

Planet HD 181720 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 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Planet HD 181720 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 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Related publications

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Taxonomy of the extrasolar planet

Defining and cataloging exoplanets: The exoplanet.eu database

Quantization of Planetary Systems and its Dependency on Stellar Rotation

Mass constraints on substellar companions candidates from the re-reduced Hipparcos intermediate astrometric data: Nine confirmed planets and two confirmed brown dwarfs

The Exoplanet Orbit Database

The HARPS search for southern extrasolar planets XXV. Results from the metal-poor sample

The Exoplanet Handbook

Density Estimation for Projected Exoplanet Quantities

Exoplanet Data Explorer

Planetary detection limits taking into account stellar noise. I. Observational strategies to reduce stellar oscillation and granulation effects

The Hill stability of the possible moons of extrasolar planets

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

Radial Velocity planet search around solar-type stars: The HARPS GTO legacy

Planets and Debris Disks: Results from a Spitzer/MIPS Search for Infrared Excess