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49 K
- Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls "ice" or volatiles. The planet's atmosphere has a complex layered cloud structure and has the lowest minimum temperature (49 K (−224 °C; −371 °F)) of all the Solar System 's planets.
en.wikipedia.org/wiki/Uranus
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1 day ago · Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls "ice" or volatiles.
5 days ago · Coldest Places in Our Solar System: Uranus – The Coldest Planet. NASA Hubble, CC BY 2.0, via Wikimedia Commons. Nestled far from the sun, Uranus claims the title of the coldest planet in our solar system. In this distant world, minimum atmospheric temperatures plunge to as little as -224 degrees Celsius (-372 degrees Fahrenheit).
1 day ago · On average, Uranus radiates the same amount of energy as an ideal, perfectly absorbing surface at a temperature of 59.1 kelvins (K; −353 °F, −214 °C). Temperature decreases with decreasing pressure—i.e., with increasing altitude, where it is about 52 K (−366 °F, −221 °C), the coldest temperature in Uranus’s atmosphere.
- Uranus was discovered on March 13, 1781, by the English astronomer William Herschel with the aid of a telescope. Uranus is the first planet to be d...
- The mean distance of Uranus from the Sun is nearly 2.9 billion km (1.8 billion miles), more than 19 times as far as Earth, and it never approaches...
- Uranus has 27 known moons that are accompanied by at least 10 narrow rings. Generally, the rings are located closer to the planet than the moons. S...
- Unlike most planets, the axis of Uranus lies almost parallel to its orbital plane, which means that the planet spins nearly on its side, its poles...
Oct 11, 2024 · One day on Uranus lasts a little over 17 hours (17 hours and 14 minutes, to be exact). One year on Uranus is the same as 84 years on Earth. That’s a long time to wait for a birthday cake.
Oct 11, 2024 · In summer and winter, large parts of the planet see nothing but daytime or nighttime for the whole season – 21 years. In spring and fall, Uranus goes through a full day-to-night cycle every 17 hours. Uranus sometimes has huge storms, and this unusual seasonal cycle might play a part in them.
Oct 13, 2024 · Even though it is closer to the sun than Neptune, Uranus is the coldest planet in the solar system, with temperatures plunging to as low as -224°C (-371°F). The reason for this is not fully understood, but it might be due to an internal heat distribution anomaly.
Oct 15, 2024 · On average, Uranus radiates the same amount of energy as an ideal, perfectly absorbing surface at a temperature of 59.1 kelvin s (K; −353 °F, −214 °C). This radiation temperature is equal to the physical temperature of the atmosphere at a pressure of about 0.4 bar.
