[seth (OP)]

What does Mars absorbing solar radiation and re-radiating the energy as a black body do to its temperature? What is the temperature of Mars?

[DoctorBeaver]

As far as I am aware, no planets act as black bodies.

If you look here you may find some useful data.

[Soul Surfer]

A with any object in space near a star the mean temperature is a balance between the radiation it recieves from the star and the radiation it looses to the depths of space.  Assuming that energy originating from within the planet is small.

Your question has no simple answer because the local temeperature varies very considerably between day and night.

[seth (OP)]

What equation would you use to calculate the temperature assuming that it did re-radiate solar radiation as a black body?

[Alan McDougall]

Mars is extremely cold compared to Earth. But sometimes in summer at the equator temperatore reach as hight a 70 degrees Fahrenheit.

The night on Mars are unimaginable bleak and cold. Usual day times not much better,

Not a very nice place at best and too awful to think about at worst

Regards

Alan

[syhprum]

I believe a black body at the orbital distance of Mars would have a temperature of 216.6°K (-56.4°C) compared with about -18°C at Earth distance.

[Bored chemist]

If wiki is right then it gets colder on Earth (-89C) than on Mars (-87). It also gets hotter on Earth.