Neptune

Atmosphere: Neptune's atmosphere is made up of hydrogen, helium, and methane.

Planet type: Gaseous

Physical characteristics: Above an Earth-sized solid center, ammonia, water, and methane travel around fluidly.

Weather: The average temperature on Neptune is -353 degrees F. Neptune is said to have the craziest weather with its extremely high winds and crazy storms.

Size: The radius of Neptune is 15,229 miles. Neptune is approximately 4 times bigger than the Earth.

Speed: Neptune travels around the sun once every 163 years or so.

# of Moons: 14

Other interesting facts:

• The discovery of Neptune is a controversy!

• Neptune experiences seasons, but since a year is so long, each season lasts for over 40 years!