Name | Kapteyn's c | ||
Planet Status | Controversial | ||
Discovered in | 2014 | ||
Mass | — | ||
Mass*sin(i) | 0.0126 ( -0.006 +0.0079 ) MJ | ![]() |
+ |
Semi-Major Axis | 0.169 ( -0.015 +0.018 ) AU | ![]() |
+ |
Orbital Period | 48.58 ( -0.11 +0.13 ) day | ![]() |
+ |
Eccentricity | 0.23 ( -0.04 +0.24 ) | ![]() |
+ |
ω | 3.9 ( -33.2 +28.9 ) deg | ![]() |
|
Tperi | — | ||
Radius | — | ||
Inclination | — | ||
Update | 2021-04-11 | ||
Detection Method | Radial Velocity | ||
Mass Detection Method | Radial Velocity | ||
Radius Detection Method | — | ||
Primary transit | — | ||
Secondary transit | — | ||
λ | — | ||
Impact Parameter b | — | ||
Time Vr=0 | — | ||
Velocity Semiamplitude K | 1.7 ( -0.83 +0.93 ) m/s | ![]() |
|
Calculated temperature | — | ||
Measured temperature | — | ||
Hottest point longitude | — | ||
Geometric albedo | — | ||
Surface gravity log(g/gH) | — | ||
Alternate Names | GJ 191 c |
A Gaussian Process Regression Reveals No Evidence for Planets Orbiting Kapteyn's Star
2021
BORTLE A., FAUSEY H., JI J., DODSON-ROBINSON S., DELGADO V. & GIZIS J.
Astron. J., 161, 230
paper arxiv
Frequency of planets orbiting M dwarfs in the Solar neighbourhood
2019
TUOMI M., JONES H., ANGLADA-ESCUDE G., BUTLER P., ARRIAGADA P. et al.
ApJ. Suppl., submitted
arxiv
Living with a Red Dwarf: Rotation and X-ray and Ultraviolet Properties of the Halo Population Kapteyn's Star
2016
GUINAN E., ENGLE S. & DURBIN A.
ApJ, accepted
arxiv
No evidence for activity correlations in the radial velocities of Kapteyn's star
2015
ANGLADA-ESCUDE G., TUOMI M., ARRIAGADA P., ZECHMEISTER M., JENKINS J. et al.
ApJ, 830, 74
paper
arxiv
Stellar activity mimics a habitable-zone planet around Kapteyn's star
2015
ROBERTSON P., ROY A. & MAHADEVAN S.
ApJ Letters, 805, L72
paper arxiv ADS
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