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Uranus Facts

Planet Uranus

Planet Uranus

Here are some interesting facts about the planet Uranus:

Uranus is the coldest planet in our solar system at an average temperature of -216°C or -357°F. You may be thinking that is why it is a blue color, however Uranus is blue because its clouds are made of methane which reflect the blue color from the spectrum of colors from the Sun. Another fact about Uranus is that it is a Gas or Jovian planet with an atmosphere composition of 82.5 % Hydrogen; 15.2 % Helium and 2.3 % Methane. Uranus was discovered on March 13, 1781 by William Herschel. Uranus has 27 moons made mostly of rock and ice and 13 rings. Uranus’s largest moon is named Titania, which has a diameter of 1,578 kilometers or 981 miles, about half the size of the Earth's moon. Another awesome fact about Uranus is that it makes you think you’re skinnier since if you weighed 150 pounds on Earth then you would weigh 136 pounds on Uranus because of the fact that its gravity is only 8.87 m/s2 or 29.1 ft/s2.

The coolest facts about Uranus is its orbit. The first fact is that it is the 7th planet from the Sun at an average distance of 2,870,658,186 km or 1,783,744,300 miles, which is 19 times farther than Earth is from the Sun. From this distance Uranus’s average orbit velocity is 24,477 km/h or 15,209 mph, where Earth’s velocity is about 4 times faster. Some other facts about Uranus’s orbit are: the Orbit Circumference of Uranus is 18,026,802,831 km or 11,201,335,967 miles, which is about 19 times more than Earth. The Orbit Eccentricity is 0.04725744, which is almost 3 times more than Earth’s. The Orbit Inclination is 0.77°. So you’re wondering what’s so cool about these Uranus orbit facts so far? Well we saved the best fact for last: the Equatorial Inclination to Orbit is 97.8°. This means if you draw a straight line from the Sun to Uranus, then this line would almost go through the North and South Pole of the planet. Yes that’s correct, Uranus lays on its side all the time. In addition to this it does all this while having a Retrograde rotation, which means its axis rotation is opposite of its orbit of the Sun. Venus is the only other planet that also has this retrograde motion. Even with this awkward movement and on its side, Uranus’s full day is only 17.23992 hours. So observing the facts that Uranus is so far from the Sun and lays on its side implies the facts that Uranus takes 30,687.15 Earth days or about 84 Earth years to make 1 orbit around the Sun and if you live on Uranus's North Pole you would get about 42 years straight of Sunlight and 42 years straight of darkness!

Okay so you’re wondering what are some facts about Uranus’s size? Well, it isn’t a giant like Jupiter but it is still the third largest planet in our solar system with a Diameter (average) of 50,724 km or 31,518 miles and an Equatorial Circumference of 59,354.1 km or 99,018.1 miles, which is about 4 times more than Earth. The volume of Uranus is 68,334,355,695,584 km3 or 42,460,999,916,448 mi3, which means you could fit about 63 Earths inside it! The Density of Uranus is 1.270 g/cm3, but Earth is 4 times more. However the mass of Uranus is still 15 times more than Earth at 8.6810 x 1025 kg (yes, 25 digits after the decimal). The last size Uranus fact is the Surface Area is 8,083,079,690 km2 or 3,120,894,516 mi2, which is about 16 times larger than Earth’s.