Uranus - There are many planets in the solar system. One of the coldest planets in the solar system is Uranus.
Uranus is the seventh planet around the sun. In terms of size, the planet ranks third as the largest and fourth based on mass.
The following are the facts of the planet Uranus, quoted from Universe Today.
Coldest Planet
Planet Uranus orbits at a distance of 2.88 billion kilometers from the sun and is closer when compared to the planet Neptune approximately 4.5 billion kilometers. However, the proximity of Uranus to the sun does not make it warmer than Neptune.
Planet Uranus is known to have a cooler temperature of -201 degrees Celsius to the lowest of -218 degrees Celsius. While the temperature in the atmosphere reaches -197.2 degrees Celsius to -226 degrees Celsius.
That's because Uranus has little absorption of solar heat. While other planets have a core that radiates infrared so it produces more heat.
Uranus Rotates sideways
All the planets in the solar system rotate on its axis with a tilt similar to the sun. In many instances, planets have an axial slope, where one of the poles will tend towards the sun slightly.
For example, Earth has a rotational axis with a slope of 23.5 degrees from the sun. Likewise, Mars has a tilt angle of 24 degrees which results in seasonal changes on both planets.
Even so, compared to Mars and Earth, the planet Uranus has a unique rotation axis of 99 degrees. In other words, the planet rotates sideways. If you pay attention, then the movement will be similar to a rolling ball.
Have 27 Months
Like other planets, including Earth, Uranus has a natural satellite or moon that surrounds it. The number of moons on the planet Uranus is even more that the Earth has, at 27.
It's just that the size of the moon on Uranus tends to be smaller and irregular. If added together, the weight of the moon on Uranus does not reach half the weight of the moon held by the planet Neptune.
While the biggest months on Uranus are Miranda, Ariel, Umbriel, Oberon and Titania. The months have a diameter of 472 km, and for Miranda it has a diameter of 1,578 km. Ariel is the brightest moon while Umbriel is the darkest.
Has a Saturn-like Ring
The planet that is currently famous for its rings is Saturn. The planet has a ring that can be seen clearly and also colorful. Like the planet, Uranus also has a ring.
It's just that the ring owned by Uranus consists of particles that are very dark and vary in size. There are micrometer-sized and some are a fraction of a meter. That is why the ring on Uranus can hardly look like Saturn.

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