Uranus

Neptune is the eighth and farthest planet from the Sun in the Solar System. It is the fourth-largest planet by diameter and the third-largest by mass. Among the gaseous planets in the Solar System, Neptune is the most dense. Neptune is 17 times the mass of Earth

Diameter	24622
Mass	1.0243×1026 kg
Temperature	72 K to 55 K

Composition	Percentage
Hydrogen	80.0%
Helium	19%
Hydrogen	22.0%
Methane	1.5%
Ethane	0.00015%
methane ice,water,ammonia	Trace amounts

• Neptune was referred to simply as "the planet exterior to Uranus" or as "Le Verrier's planet".
• Neptune's mass of 1.0243×1026 kg,[5] is intermediate between Earth and the larger gas giants: it is 17 times that of Earth but just 1/19th that of Jupiter.
• Neptune's internal structure resembles that of Uranus. Its atmosphere forms about 5% to 10% of its mass and extends perhaps 10% to 20% of the way towards the core, where it reaches pressures of about 10 GPa, or about 100,000 times that of Earth's atmosphere.