SP-436 Project Orion: A Design Study of a System for Detecting
Extrasolar Planets
Figure 6. A plot of the power emitted per unit frequency
interval as a function of frequency. Data are shown for the Sun
(upper curve) and for Jupiter. The hump in the Jupiter curve at low
frequencies (~1013 Hz) is due to intrinsic thermal
radiation, whereas the hump at higher frequencies {~3 x
1014 Hz) is due to reflected sunlight.
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