Temperature of Neptune
Name: Newton Guest 6
What is Neptune's temperature?
I do not know, but we can make a guess. The energy receiving each square
meter of the planet varies as the inverse square of the distance to the Sun.
We would expect the average temperature to be proportional to the average
temperature of Earth multiplied by the square of the ratio of the distance
of Earth from Sun to distance of Neptune to Sun or the square of 150/4500.
You should be able to work this out. Remember to square this number and
then multiply by the average Earth temperature.
Samuel P Bowen
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Update: June 2012