Planet GJ 3512 b
| Name | GJ 3512 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2019 | ||
| Mass | — | ||
| Mass*sin(i) | 0.46 ( -0.01 +0.02 ) MJ |  |
|
| Semi-Major Axis | 0.337 (± 0.001) AU | |
|
| Orbital Period | 203.69 ( -0.02 +0.09 ) day | |
|
| Eccentricity | 0.44 (± 0.01) | |
|
| ω | 125.8 ( -0.7 +0.4 ) deg | |
|
| Tperi | 2457745.65 (± 0.05) JD | |
|
| Radius | — | ||
| Inclination | — | ||
| Update | 2020-11-25 | ||
| Detection Method | Radial Velocity | ||
| Mass Detection Method | Spectrum | ||
| Radius Detection Method | — | ||
| Primary transit | — | ||
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | — | ||
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | 71.8 ( -0.1 +0.2 ) m/s | |
|
| Calculated temperature | — | ||
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | — |
Star
GJ 3512| Name | GJ 3512 | ||
| Distance | 9.489 (± 0.008) pc | |
|
| Spectral type | M5.5V | ||
| Apparent magnitude V | — | ||
| Mass | 0.123 (± 0.009) MSun | |
|
| Age | — | ||
| Effective temperature | 3081.0 (± 51.0) K | |
|
| Radius | 0.139 (± 0.005) RSun | |
|
| Metallicity [Fe/H] | -0.07 (± 0.16) | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 08:41:20.0 | ||
| Dec2000 | +59:29:50 | ||
| Alternate Names | |||
| Planetary system | 2 planets |
Observability Predictor 
Remarks
Lopez-Santiago et al, 2020 : Fit of the RV data reveals the star rotation and permits to estimate an activity cycle length of ~14 yrRelated publications
A likely magnetic activity cycle for the exoplanet host M dwarf GJ 3512
2020
LOPEZ-SANTIAGO J., MARTINO L., MIGUEZ J. & VASQUEZ M.
Astron. J., 160, 273
paper arxiv
A giant exoplanet orbiting a very low-mass star challenges planet formation models
2019
MORALES J., MUSTILL A., RIBAS I., DAVIES M., REINERS A. et al.
Science, 365, 1441
paper arxiv
