Planet K2-290 c

Name K2-290 c
Planet Status Confirmed
Discovered in 2019
Mass 0.774 (± 0.047) MJ
Mass*sin(i)
Semi-Major Axis 0.305 (± 0.017) AU
Orbital Period 48.36685 (± 0.0004) day
Eccentricity 0.0
ω 90.0 deg
Tperi
Radius 1.006 (± 0.05) RJ
Inclination 89.37 (± 0.08) deg
Update 2021-02-16
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2458019.17333 (± 0.00029) JD
Secondary transit
λ 153.0 (± 8.0) deg
Impact Parameter b 0.474 (± 0.012)
Time Vr=0
Velocity Semiamplitude K 38.4 (± 1.7) m/s
Calculated temperature 676.0 (± 16.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names EPIC 249624646 c, 2MASS J15392585-2011557 c, TYC 6193-663-1 c, WISE J153925.88-201155.9 c

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