K2-3b

K2-3b also known as EPIC 201367065 b is an exoplanet orbiting the red dwarf K2-3 every 10 days.[2][4] It is the largest and most massive planet of the K2-3 system, with about 2.3 times the radius of Earth and almost 7 times the mass. Its density of about 3.0 g/cm3 indicates a composition of almost entirely water, or a hydrogen envelope comprising 0.7% of the planet's mass.[3]

K2-3b
Discovery[1]
Discovery siteKepler Space Observatory
Discovery date2015
Transit
Orbital characteristics
0.0777+0.0024
−0.0026
AU
Eccentricity0.060±0.060[2]
10.05454±0.00003[3] d
Inclination89.59+0.24
−0.40
[2]
Semi-amplitude2.7±0.4[3]
StarK2-3
Physical characteristics
Mean radius
2.29±0.23[3] R
Mass6.6±1.1[3] M
Mean density
3.0+1.3
−0.9
g cm−3
Temperature454 K (181 °C; 358 °F)

    References


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