Size of Uranus compared with the Earth Facts about Uranus William Herschel discovered Uranus in 1781.

The mean radius of Uranus is 15,792 miles (25,362 kilometers), giving a diameter four times that of Earth. Uranus Year: 84 Earth years. The reason why the giant planet has a shorter day is because of its rotational velocity with is 28,148.1 15 mph at the equator.

This uses Earth time. URANUS' ORBIT AND DISTANCE FROM THE SUN Uranus is over 19 times as far from the Sun as the Earth is; it averages 19.18 A.U. Jupiter is the largest planet and the Jovian day (a day on Jupiter) is only 9 hrs 55 mins and 30 secs, a length which is about 1/3 the length of the day on Earth. At those seasons, the length of a day on Uranus comes into play.

Uranus' unique sideways rotation makes for weird seasons. The planet is too dim to have been seen by ancient civilizations. URANUS' ORBIT AND DISTANCE FROM THE SUN Uranus is over 19 times as far from the Sun as the Earth is; it averages 19.18 A.U. The planet does rotate on its axis once every 17 hours and 14 minutes. The gas giants rotate really fast. However, Uranus spins backwards compared to Earth and most of … The length of the orbit of Uranus is 84 years. A year on Uranus takes 84.07 Earth years; it takes 84.07 Earth years for Uranus to orbit the sun once.
A day on Uranus is 17.24 Earth hours while a day on Earth is 23.934 hours. Pop Culture A day on Uranus is 17.24 Earth hours while a day on Earth is 23.934 hours.

1 year on Earth is the length of time that it takes Earth to orbit the sun.

Herschel himself believed that Uranus was a comet at first, but several years later it was confirmed as a planet – making Uranus the first planet discovered […] On Mercury a day lasts 1,408 hours, and on Venus it lasts 5,832 hours. Uranus rotates faster than Earth so a day on Uranus is shorter than a day on Earth. How Long is a Year on Uranus? The image was released on April 13, 2012. On Earth and Mars it’s very similar. The planet's north pole experiences 21 years of nighttime in winter, 21 years of daytime in summer and 42 years of day and night in the spring and fall. This is the length of one year on Uranus.
It is not identical with the rotation period, because the planets orbit the Sun and the Moon also orbits Earth. A year on Uranus takes 84.07 Earth years; it takes 84.07 Earth years for Uranus to orbit the sun once. Earth takes 24 hours to complete one spin, and Mars takes 25 hours. However, just like on the other giant planets, it also experiences relatively strong winds going in the direction of its rotation. Uranus Day: 17 hours, 14 minutes, and 24 seconds. LENGTH OF A DAY AND YEAR ON URANUS Each day on Uranus takes 17.9 Earth hours. That means one axis or the other is pointed at the Sun during part of its 84-year orbit. LENGTH OF A DAY AND YEAR ON URANUS Each day on Uranus takes 17.9 Earth hours. [/caption] A day on Uranus is 17 hours, 14 minutes and 24 seconds. However, since it takes 17 hours 14 minutes 24 seconds for Uranus to rotate once on its axis (a sidereal day).