Emissivity of spherical interplanetary probe.xls

Known: Diameter and emissivity of spherical interplanetary probe. Power dissipation within probe.
Find: robe surface temperature
Assumptions:
1) Steady-state conditions
2) Negligible radiation incident on the probe
Analysis:
Conservation of energy dictates a balance between energy generation within the probe and radiation emission from the probe surface.

Calculation Reference
Fundamentals of Heat and Mass Transfer - Frank P. Incropera