Planet K2-290 b

Name K2-290 b
Planet Status Confirmed
Discovered in 2019
Mass 0.0343 MJ
Mass*sin(i)
Semi-Major Axis 0.0923 (± 0.0066) AU
Orbital Period 9.21165 (± 0.00034) day
Eccentricity 0.0
ω 90.0 deg
Tperi
Radius 0.273 ( -0.014 +0.014 ) RJ
Inclination 88.14 ( -0.5 +0.6 ) deg
Update 2021-02-16
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2457994.7725 (± 0.0016) JD
Secondary transit
λ 173.0 ( -53.0 +45.0 ) deg
Impact Parameter b 0.438 (± 0.023)
Time Vr=0
Velocity Semiamplitude K 3.3 m/s
Calculated temperature 1230.0 (± 38.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names EPIC 249624646 b, 2MASS J15392585-2011557 b, TYC 6193-663-1 b, WISE J153925.88-201155.9 b

Star

K2-290
Name K2-290
Distance 274.99 ( -3.8 +3.8 ) pc
Spectral type
Apparent magnitude V 10.0
Mass 1.19 ( -0.08 +0.07 ) MSun
Age 4.0 ( -0.8 +1.6 ) Gyr
Effective temperature 6302.0 (± 120.0) K
Radius 1.51 ( -0.07 +0.07 ) RSun
Metallicity [Fe/H] -0.06 (± 0.1)
Detected Disc
Magnetic Field
RA2000 15:39:25.9
Dec2000 -20:11:56
Alternate Names EPIC 249624646, 2MASS J15392585-2011557, TYC 6193-663-1, WISE J153925.88-201155.9
Planetary system
2 planets

More data


Related publications

A backward-spinning star with two coplanar planets
2021 HJORTH M., ALBRECHT S., HIRANO T., WINN J., DAWSON R. et al.
PNAS, accepted
arxiv

K2-290: a warm Jupiter and a mini-Neptune in a triple-star system
2019 HJORTH M., JUSTESEN A., HIRANO T., ALBRECHT S., GANDOLFI D. et al.
MNRAS, 484, 3522
paper  arxiv