Planet K2-146 b

Name K2-146 b
Planet Status Confirmed
Discovered in 2018
Mass 0.01816 ( -0.00024 +0.00024 ) MJ
Mass*sin(i)
Semi-Major Axis 0.027 (± 0.001) AU
Orbital Period 2.6446 ( -6e-05 +6e-05 ) day
Eccentricity 0.129 ( -0.019 +0.019 )
ω -64.0 ( -6.0 +6.0 ) deg
Tperi
Radius 0.183 ( -0.005 +0.005 ) RJ
Inclination 88.93 ( -0.11 +0.11 ) deg
Update 2021-02-05
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method Primary Transit
Primary transit 2457139.35327 (± 0.00085) JD
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names 2MASS J08400641+1905346 b, EPIC 211924657 b, EPIC 211924657.01, WISE J084006.41+190533.1 b

Star

K2-146
Name K2-146
Distance 79.31 (± 0.45) pc
Spectral type M3.0 V
Apparent magnitude V 16.25
Mass 0.33 ( -0.01 +0.01 ) MSun
Age 5.0 ( --2.0 +4.0 ) Gyr
Effective temperature 3385.0 (± 70.0) K
Radius 0.33 (± 0.01) RSun
Metallicity [Fe/H] -0.02 (± 0.12)
Detected Disc
Magnetic Field
RA2000 08:40:06.4
Dec2000 +19:05:34
Alternate Names UCAC3 219-93463, 2MASS J08400641+1905346, K2-146, EPIC 211924657, WISE J084006.41+190533.1
Planetary system
2 planets

More data


Related publications

It takes two planets in resonance to tango around K2-146
2019 LAM K., KORTH J., MASUDA K., CSIZMADIA Sz., EIGMÜLLER Ph. et al.
ApJ, submitted
arxiv  

K2-146: Discovery of Planet c, Precise Masses from Transit Timing, and Observed Precession
2019 HAMANN A., MONTET B., FABRYCKY D. & AGOL E.
Astron. J., 158, 133
paper  arxiv  

Exoplanets around Low-mass Stars Unveiled by K2
2018 HIRANO T., DAI F., GANDOLFI D., FUKUI A., LIVINGSTON J. et al.
ApJ, 155, 127
paper  arxiv