Planet K2-229 d

Name K2-229 d
Planet Status Confirmed
Discovered in 2018
Mass 0.079 ( -0.079 +0.0 ) MJ
Mass*sin(i)
Semi-Major Axis 0.182 (± 0.0042) AU
Orbital Period 31.0 (± 1.1) day
Eccentricity 0.39 (± 0.29)
ω
Tperi
Radius 0.2364 (± 0.0214) RJ
Inclination 88.92 (± 0.24) deg
Update 2018-11-29
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature 522.0 (± 15.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

K2-229
Name K2-229
Distance 104.0 (± 4.0) pc
Spectral type
Apparent magnitude V
Mass 0.837 ( -0.025 +0.019 ) MSun
Age 5.4 ( -3.7 +5.2 ) Gyr
Effective temperature 5185.0 (± 32.0) K
Radius 0.793 ( -0.02 +0.032 ) RSun
Metallicity [Fe/H] -0.06 (± 0.02)
Detected Disc
Magnetic Field
RA2000 12:27:30.0
Dec2000 -06:43:19
Alternate Names
Planetary system
3 planets

More data


Related publications

An Earth-sized exoplanet with a Mercury-like composition
2018 SANTERNE A., BRUGGER B., ARMSTRONG D., ADIBEKYAN V., LILLO-BOX J. et al.
Nature Astronomy, 2, 393
paper  arxiv