Kepler-19b

Kepler-19b is a planet orbiting around the star Kepler-19.^[3] The planet has an orbital period of 9.3 days,^[5] with an estimated radius of roughly 2.2 times that of the Earth, with a mass around 8.4 times that of the Earth.^[2] It is one of three planets orbiting Kepler-19.^[4]

Kepler-19b

Discovery
Discovered by	William J. Borucki et al.[1]
Discovery date	2 February 2011
Detection method	Transit method
Orbital characteristics
Semi-major axis	0.085 AU (12,700,000 km)[2]
Orbital period (sidereal)	9.2869944 ± 0.0000088[3] d
Inclination	89.94+0.06 −0.44[3]
Star	Kepler-19
Physical characteristics
Mean radius	2.209 ± 0.048[3] R🜨
Mass	8.4 ± 1.6[4] M🜨
Mean density	4.32 ± 0.87 g/cm3 (0.156 ± 0.031 lb/cu in)[4]

See also

• List of planets discovered by the Kepler spacecraft
• Exoplanet
• Planetary System

Other planets in the Kepler-19 system

• Kepler-19c
• Kepler-19d