Planet Kapteyn's b

Name Kapteyn's b
Discovered in 2014
Mass 0.0151024132398 (± 0.00314633609162) MJ
Semi-major axis 0.168 (± 0.008) AU
Orbital period 48.616 (± 0.036) day
Eccentricity 0.21 (± 0.11)
ω 80.4 (± 30.0) deg
Tperi
Radius
Inclination
Update June 4, 2014
Detection Method Radial Velocity
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitute
Surface gravity log(g/gH)
Alternate Names

Graphical Ephemeris

Star

Name Kapteyn's
Distance 3.91 (± 0.01) pc
Spectral type dM1
Apparent magnitude V 8.8
Mass 0.281 (± 0.014) MSun
Age 8.0 (± 7.5) Gyr
Effective temperature 3550.0 (± 50.0) K
Radius 0.29 (± 0.025) RSun
Metallicity [Fe/H] -0.86
Disc
Magnetic Field]
RA2000 05:11:41.0
Dec2000 -45:01:06
Alternate Names
Planetary system 2 planets

Remarks

Alias HD 33793

More data


Related publications

Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf
2014 ANGLADA-ESCUD2 G., ARRIAGADA P., TUOMI M., ZECHMEISTER M., JENKINS J. et al.
MNRAS, 443, L89
paper  arxiv