K2-290 b
Orbiting K2-290
K2-290 b is an exoplanet orbiting the star K2-290, discovered in 2019 using the Transit method. It is a Mini-Neptune world.
Radius
3.06
Earth radii
Mass
10.90
Earth masses
Orbital Period
9.2
days
Distance
272.9
parsecs
Equilibrium Temp
1230
K
Radius (Earth radii)
3.06
Mass (Earth masses)
10.90
Measured
Equilibrium Temperature
1230 K
Parameter source: Hjorth et al. 2019
Orbital Period
9.212+0.000−0.000days
Semi-Major Axis
0.0923+0.0066−0.0066au
Planet Mass (Earth masses)
10.90
Planet Mass (Jupiter masses)
0.0343
Eccentricity
0.0000
Argument of Periastron
90.0deg
Radial Velocity Semi-Amplitude
<3.3m/s
Distance from Earth
272.9 pc (~890 ly)
Spectral Type
Unknown
Temperature
6302 K
Mass (Solar)
1.19 M☉
Radius (Solar)
1.51 R☉
Luminosity
Unknown
Planets in System
2
Stars in System
3
Coordinates (RA, Dec)
234.8579°, -20.1989°
Discovery Method
Transit
Discovery Year
2019
Source ID: K2-290 b
K2-290 b orbits K2-290 and was reported in 2019 and was detected with the Transit method.
Published measurements list a radius of 3.06 Earth radii, a mass of 10.9 Earth masses, an orbital period of 9.21 days, and an equilibrium temperature near 1,230 K.
Catalog data places the system at about 272.9 parsecs from Earth and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open K2-290More planets in this system