Planet Kapteyn's c

Detailed information about planet Kapteyn's c and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

Kapteyn's c

Planet Status

Controversial

Discovered in

2014

Publication Status

—

Update

2021-04-11

Mass

—

Mass*sin(i)

0.0126 (\begin{matrix} + 0.0079 \\ - 0.006 \end{matrix})

M_J 2 publications

Frequency of planets orbiting M dwarfs in the Solar neighbourhood
Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Semi-Major Axis

0.169 (\begin{matrix} + 0.018 \\ - 0.015 \end{matrix})

AU 2 publications

Frequency of planets orbiting M dwarfs in the Solar neighbourhood
Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Orbital Period

48.58 (\begin{matrix} + 0.13 \\ - 0.11 \end{matrix})

day 2 publications

Frequency of planets orbiting M dwarfs in the Solar neighbourhood
Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Eccentricity

0.23 (\begin{matrix} + 0.24 \\ - 0.04 \end{matrix})

2 publications

Frequency of planets orbiting M dwarfs in the Solar neighbourhood
Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Angular distance

—

ω

3.9 (\begin{matrix} + 28.9 \\ - 33.2 \end{matrix})

deg 1 publication

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

T_peri

—

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

1.7 (\begin{matrix} + 0.93 \\ - 0.83 \end{matrix})

m/s 1 publication

Frequency of planets orbiting M dwarfs in the Solar neighbourhood

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

GJ 191 c

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

Kapteyn's

Distance

3.91 (\pm 0.01)

pc 1 publication

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Spectral type

dM1

Apparent magnitude V

8.8

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.281 (\pm 0.014)

M_Sun 1 publication

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Age

8.0 (\pm 7.5)

Gyr 1 publication

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Effective temperature

3550.0 (\pm 50.0)

K 1 publication

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Radius

0.29 (\pm 0.025)

R_Sun 1 publication

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Metallicity [Fe/H]

-0.86 1 publication

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

05:11:41.0

Dec₂₀₀₀

-45:01:06.0

Alternate Names

—

Alias HD 33793

No link

Simbad
Most recent references (ADS)

Planet Kapteyn's c

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 0 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Planet Kapteyn's c

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 0 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

A Gaussian Process Regression Reveals No Evidence for Planets Orbiting Kapteyn's Star

Frequency of planets orbiting M dwarfs in the Solar neighbourhood

Living with a Red Dwarf: Rotation and X-ray and Ultraviolet Properties of the Halo Population Kapteyn's Star

No evidence for activity correlations in the radial velocities of Kapteyn's star

Stellar activity mimics a habitable-zone planet around Kapteyn's star

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf