Exoplanets compared with Earth and Jupiter

Planets around other stars come in sizes our Solar System lacks: rocky worlds bigger than Earth and puffy gas giants wider than Jupiter.

See exoplanets in 3D, at true scale

#	Name	Diameter	× Earth
1	TRAPPIST-1e Rocky exoplanet	11,720 km	0.920
2	Kepler-452b Super-Earth	20,770 km	1.63
3	55 Cancri e Lava super-Earth	23,950 km	1.88
4	TrES-4b Puffy hot Jupiter	250,300 km	19.6
5	HAT-P-67b Inflated hot Saturn	299,200 km	23.5

Exoplanets

HAT-P-67b

HAT-P-67b is one of the largest planets known and one of the least dense — a Saturn-mass world blown up to more than twice Jupiter's width, trailing a vast cloud of escaping helium.

TrES-4b

TrES-4b is a hot Jupiter so puffed up by its star's heat that its density is lower than cork.

55 Cancri e

55 Cancri e is a super-Earth so close to its star that its year lasts 18 hours and its day side may be an ocean of magma.

Kepler-452b

Kepler-452b was announced in 2015 as the closest thing yet to an Earth twin: a slightly larger world orbiting a Sun-like star on a 385-day year, right in the habitable zone.

TRAPPIST-1e

TRAPPIST-1e is one of seven Earth-sized planets orbiting a small red dwarf 40 light-years away.