Look at each moon in in the collage above. The moons are displayed to scale. Read the accompanying descriptions and look for clues about which moon will be the brightest and which will be the faintest in the infrared. Then rank the moons beginning with the brightest. Prediction from Data Study the table of moon sizes and magnitudes.
Lower magnitudes indicate brighter objects.
Using these data, predict the ranking of the the moons in IR brightness. You may modify your earlier prediction. 5.0 Europa 1.0 arc sec. 5.3 Ganymede 1.7 arc sec. 4.6 Callisto 1.6 arc sec.