K2-3b

K2-3b
Discovery[1]
Discovery siteKepler Space Observatory
Discovery date2015
Transit
Orbital characteristics[2]
0.0747+0.0013
−0.0012 AU
Eccentricity0.107+0.057
−0.059
10.0546535+0.0000088
−0.0000091 d
Inclination89.40°+0.34°
−0.22°
188°+32°
−34°
Semi-amplitude2.27±0.28 m/s
StarK2-3
Physical characteristics[2]
2.078+0.076
−0.067 R🜨
Mass5.11+0.65
−0.64 M🜨
Mean density
3.11+0.49
−0.46 g/cm3
Temperature501.3+5.1
−5.2 K (228.2 °C; 442.7 °F, equilibrium)

K2-3b, also known as EPIC 201367065 b, is an exoplanet orbiting the red dwarf K2-3 every 10 days.[3][4] It is the largest and most massive planet of the K2-3 system, with about 2.1 times the radius of Earth and about 5 times the mass.[2] Its density of about 3.1 g/cm3 may indicate a composition of almost entirely water, or a hydrogen envelope comprising about 0.7% of the planet's mass.[5]

  1. ^ Cite error: The named reference Crossfield2015 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Diamond-Lowe2022 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference NasaExoplanetArchive was invoked but never defined (see the help page).
  4. ^ "The Extrasolar Planet Encyclopaedia — K2-3 B". Extrasolar Planets Encyclopaedia.
  5. ^ Cite error: The named reference Damasso2018 was invoked but never defined (see the help page).