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Originally Posted by freebeard
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Radio emission dovetails to a specific Kelvin temperature.'Reading' the radio frequency of the sunspot should reveal its actual temperature,and from that,where it would lie along the rest of the electromagnetic spectrum.
In 1945,Scott and Pawsey,at the Radiophysics Laboratory,Australia,discovered radio emission from the Sun,at 15-million degrees K.Today's Parker Probe may be able to parse out some of these details.It will be as close as 4-million miles from the Sun.