Stig Östlund

tisdag, maj 07, 2019

RARE SOLAR RADIO BURST:

Sunspot AR2740
 Last month, sunspot AR2740 strafed Earth with loud shortwave radio bursts. It's doing it again. "Yesterday, May 6th, was an incredible day of strong solar radio bursts including one of the strongest of the current solar cycle," reports Thomas Ashcraft who recorded the outburst with a shortwave radio telescope in New Mexico. Go to 'spaceweather. com' to listen:

How does a sunspot make radio waves? 
It starts with a solar flare. Beams of electrons accelerated by flares slice through the sun's atmosphere, creating a ripple of plasma waves and radio static detectable on Earth 93 million miles away. Astronomers classify solar radio bursts into five types -->
www.sws.bom.gov.au/Category/World%20Data%20Centre/Data%20Display%20and%20Download/Spectrograph/Solar%20Radio%20Burst%20Classifications.pdf

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