Temperature and Distance

  • As a planet absorbs solar radiation, its temperature rises.
  • One important factor that helps determine the temperature of a planet is its distance from the sun.
  • Take a look at the data table shown here. What can you say about planets that are closer to the sun in terms of temperature.
  • Do you think distance is the ONLY factor that determines temperature?
  Temperature (in Kelvin) Distance (in AU)
Mercury 400 0.39
Venus 730 0.72
Earth 280 1.00
Mars 213 1.52