Planet K2-290 Ab

Detailed information about planet K2-290 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
K2-290 Ab
Planet Status
Confirmed
Discovered in
2019
Update
2024-07-28
Mass
0.0343 MJ
Mass*sin(i)
—
Semi-Major Axis
0.0923 ( ± 0.0066 ) AU
Orbital Period
9.21165 ( ± 0.00034 ) day
Eccentricity
—
ω
90.0 deg
Tperi
—
Radius
0.273 ( +0.014 -0.014 ) RJ
Inclination
88.14 ( +0.6 -0.5 ) deg
Detection Method
Primary Transit
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary Transit
Primary transit
2457994.7725 ( ± 0.0016 ) JD
Secondary transit
—
λ
173.0 ( +45.0 -53.0 ) 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
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

See also Planets in Binaries webpage.

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Star

Name
K2-290 A
Distance
272.909 ( +3.824 -3.721 ) pc
Spectral type
F7IV-V
Apparent magnitude V
10.0
Mass
1.19 ( +0.07 -0.08 ) MSun
Age
4.0 ( +1.6 -0.8 ) 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
-20:11:55.7
Alternate Names
BD-19 4173, TYC 6193-663-1, WISE J153925.88-201155.9, EPIC 249624646, 2MASS J15392585-2011557

Hjorth et al. (2019): K2-290 is part of a triple system with two M dwarf companion stars 113 and 2467 AUs away.

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