Planet HIP 86221 Ab

Detailed information about planet HIP 86221 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HIP 86221 Ab

Planet Status

Confirmed

Discovered in

2021

Publication Status

—

Update

2024-07-28

Mass

—

Mass*sin(i)

0.71

M_J 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

Semi-Major Axis

0.031 AU 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

Orbital Period

2.224 (\pm 0.0005)

day 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

Eccentricity

0.086 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

Angular distance

—

ω

209.0 deg 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

T_peri

2457947.283 JD 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

Radius

—

Inclination

—

Detection Method

Radial Velocity

Mass Meas. Method

Radial Velocity

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

129.6 (\begin{matrix} + 35.0 \\ - 20.0 \end{matrix})

m/s 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

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

Star

Name

HIP 86221 A

Distance

29.4898 (\pm 2.21962)

pc 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

Spectral type

K5V

Apparent magnitude V

9.22

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.79 M_Sun 1 publication

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

Age

—

Effective temperature

—

Radius

—

Metallicity [Fe/H]

—

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

17:37:11.0

Dec₂₀₀₀

+27:53:47.0

Alternate Names

BD+27 2853, GJ 9595, KUI 83 A

Paredes et al. (2021): The HIP 86221 system is known to be a stellar triple. The AB components are separated by a few tenths of an arcsecond, with B fainter than A by 0.59 mag in the optical. A visual binary orbit has been determined for AB using astrometry and speckle interferometry, yielding a period of 23.991 years, semi-major axis of 0.2884'' (8.5au) and eccentricity 0.2053. The third star in the system is NLTT 45161 at a distance of 9.4'' and is 2.26 magnitudes fainter in the V band than the combined AB pair.

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