Uranus, the third-largest planet in the solar system, has an
average temperature of –350° F and does not have a solid
surface. Size: About 4 Earths would fit side by side across the
face of Uranus. Its diameter is 31,800 miles (51,100
kilometers), making it the third-largest planet in the solar
system. Photo by NASA Marshall Space Flight Center Distance from
the Sun: The seventh planet from the Sun, Uranus orbits at a
distance of about 1.8 billion miles (2.9 billion km), more than
19 times farther than Earth's orbit. Orbit around the Sun:
Uranus goes around the Sun once every 84 Earth years. Rotation:
Uranus spins on its axis one time every 17 hours. Surface:
Uranus does not have solid surface. Atmosphere: The atmosphere
of Uranus holds hydrogen (83 percent), helium (15 percent), and
methane (2 percent). Methane is what gives Uranus its blue-green
color. |Temperature: Uranus is very cold its average temperature
is | 350° F (210° C). Escape velocity: To escape the gravity of
Uranus, you need to travel 47,600 m