[AMRadio] Holes in the sun.

manualman at juno.com manualman at juno.com
Mon Jul 29 16:53:52 EDT 2019


Also, be aware that the major Perseids meteor shower is active till
around 8/26. Predicted peak will be around 8/12 to 8/13. So, if you're so
inclined to bounce your AM signal off meteor trails, aim that antenna up.

Pete, wa2cwa

On Mon, 29 Jul 2019 14:43:47 -0500 <w5jo at brightok.net> writes:
> From Space Weather.
> 
> http://www.spaceweather.com/
> 
> HOLES IN THE SUN'S ATMOSPHERE: Earth is about to be strobed by three 
> streams 
> of solar wind--each flowing from a hole the sun's atmosphere. NASA's 
> Solar 
> Dynamics Observatory photographed the gaseous spigots on July 29th:
> 
> These are "coronal holes"--places where the sun's magnetic field 
> peels back 
> and allows solar wind to escape. Coronal holes look dark in extreme 
> 
> ultraviolet images of the sun because glowing-hot plasma normally 
> contained 
> there is missing.
> The first of the streams is expected to arrive on Aug 1st, followed 
> by two 
> more in rapid succession on Aug. 4th. Polar geomagnetic unrest and 
> possibly 
> some minor magnetic storms are possible on those dates. 
> High-latitude sky 
> watchers should be alert for auroras, especially in the southern 
> hemisphere 
> where winter darkness favors visibility 



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