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Neptune is thirty times farther from the Sun than we are, and is so far away that the Sun just looks like a star, so as you can imagine the upper atmosphere is freezing cold - just -225 degrees Celsius! This is extremely cold.

However, inside Neptune it is hot - very hot - and reaches tens of thousands of degrees, hotter than the surface of the Sun! This immense difference between Neptune's bitterly cold upper atmosphere and seething hot core causes huge convection currents to flow through the planet, stirring its air and causing Neptune to have the fastest winds in the solar system.

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13y ago
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7y ago

Neptune is mostly cold it is about... -201.15 degrees Celsius and it only gets about 40% of sunlight

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15y ago

Neptune is cold because it is the farthest planet from the sun. YOUR WELCOME!!!!!!!!

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12y ago

The edge of Neptune's atmosphere is very cold but as the pressure builds in the lower reaches of the atmosphere, the heat increases tremendously.

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11y ago

It's cold on the surface, but hot near the center.

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8y ago

The average temperature is -201 K.

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11y ago

It is cold

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Q: Is Neptune's core cold or warm?
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