Planet GJ 143 b

Name GJ 143 b
Planet Status Confirmed
Discovered in 2018
Mass 0.09637 ( -0.0084 +0.00827 ) MJ
Mass*sin(i)
Semi-Major Axis 0.1932 (± 0.0002) AU
Orbital Period 35.589 ( -0.005 +0.006 ) day
Eccentricity 0.325 (± 0.006)
ω 121.8 (± 19.0) deg
Tperi
Radius 0.2280839 (± 0.0282262) RJ
Inclination
Update 2018-12-12
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method
Primary transit 2458350.312 (± 0.1) JD
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 7.6 (± 0.65) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

GJ 143
Name GJ 143
Distance 16.3 (± 0.03) pc
Spectral type K4.5V
Apparent magnitude V 8.3
Mass 0.76 ( -0.02 +0.03 ) MSun
Age
Effective temperature
Radius 0.73 (± 0.01) RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 03:26:59.0
Dec2000 -63:29:57
Alternate Names
Planetary system 1 planet

More data

Observability Predictor

Remarks

12 Dec 2018: : The orbital period comes from RV measurements since there is only one transit (Trifonov et al. 2018)

Related publications

TESS exoplanet candidates validated with HARPS archival data. A massive Neptune around GJ 143 and two Neptunes around HD 23472
2018 TRIFONOV T., RYBIZKI J. & KÜRSTER M.
Astron. & Astrophys., 622, L7
paper  arxiv