Electromagnetic Spectrum of the Sun : Microwaves Part 1

Can we observe the entire electromagnetic spectrum of the Sun on Earth?  The answer is no. Once the radiation penetrates through Earths atmosphere some are reflected, absorbed or scattered.  This is shown in below graph provide by NASA.

The common electromagnetic radiation from the Sun observed on Earth are visible light, microwaves and radio waves.  Microwaves are defined as waves with wavelenghts between 1m and 1mm and thus a frequency between 300MHz en 300GHz. This is calculated via

wavelength (m) = phase speed (m/s) / frequency (Hz)  (Phase speed in space equals speed of light)


In a next article I will explain the correlation between Sunspot data and microwaves emitted from the Sun.