Planet K2-288B b

Name K2-288B b
Planet Status Confirmed
Discovered in 2018
Mass
Mass*sin(i)
Semi-Major Axis 0.164 (± 0.03) AU
Orbital Period 31.393463 (± 6.9e-05) day
Eccentricity
ω
Tperi
Radius 0.152 (± 0.0321) RJ
Inclination 89.81 ( -0.17 +0.13 ) deg
Update 2019-01-09
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method Primary Transit
Primary transit 2457963.40237 (± 0.0011) JD
Secondary transit
λ
Impact Parameter b 0.37 (± 0.25)
Time Vr=0
Velocity Semiamplitude K
Calculated temperature 226.36 (± 22.3) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

K2-288B
Name K2-288B
Distance 69.3 (± 0.4) pc
Spectral type M3V
Apparent magnitude V 14.5
Mass 0.33 (± 0.02) MSun
Age 1.0 Gyr
Effective temperature 3341.0 (± 276.0) K
Radius 0.32 (± 0.03) RSun
Metallicity [Fe/H] -0.21 (± 0.09)
Detected Disc
Magnetic Field
RA2000 03:41:46.0
Dec2000 +18:18:08
Alternate Names
Planetary system 1 planet

More data

Observability Predictor

Remarks

09 Jan 2019: The 1.7 Earth radius corresponds to the Kepler band pass. The Spitzer band pass leads to a 2.86 Earth radius (Feinstein et al. 2019)

Related publications

K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists
2019 FEINSTEIN A., SCHLIEDER J., LIVINGSTON J., CIARDI D., HOWARD A. et al.
Astron. J., 157, 40
arxiv  paper  arxiv