Hello, I'm an expert in astronomy with a keen interest in the study of planets and their various characteristics. When it comes to the coldest planet in our solar system, we often think of the planets that are farthest from the Sun, as they receive less solar radiation and therefore are colder.

The coldest planet in our solar system is Uranus. Uranus has an average temperature of about -371 degrees Fahrenheit (-224 degrees Celsius), which is significantly colder than Neptune, despite being closer to the Sun. This is due to Uranus' unique atmospheric composition and its extreme tilt, which causes it to experience extreme seasonal variations, with parts of the planet experiencing 21 years of continuous sunlight or darkness at a time.

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As the planets in our Solar System get further away from the Sun, they generally get colder. So what is the coldest planet of our Solar System. That would be Neptune, the 8th and final planet in the Solar System. If Pluto was still a planet, it would be colder, but now it's Neptune.read more >>