Geomagnetic Unrest May 2019

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Carbon60
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Geomagnetic Unrest May 2019

Post by Carbon60 »

Currently there isn't a whole lot of solar activity, as we know, but occasional large coronal holes do come around and their influence can be detected here on Earth using magnetometers that respond to geomagnetic unrest.

Recent geomagnetic activity from a stream of fast flowing solar wind erupting from a coronal hole in the Sun's outer atmosphere sparked aurora around the poles and moved magnetometer 'needles' accordingly. Actually few use needles anymore and instead we rely on highly sensitive magnetic sensors connected to computers that monitor the tiniest changes in local magnetic fields at the sub-nano Teslar level.

Here are my data from over the past 2.5 days that show how my local magnetic field here in the NW of England responded to a pulse of magnetically energised plasma as Earth passed through the wind stream.
20190503_Coronal Hole.jpg
20190503_Coronal Hole.jpg (201.82 KiB) Viewed 2367 times
Nothing spectacular this time, but there appears to be some activity on the far side of the Sun (old AR2738) which might throw something our way in the form of a CME when it comes around (hopefully) in the next few days. We'll see.

Thanks for looking.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Geomagnetic Unrest May 2019

Post by Montana »

ooh that looks good Stuart :hamster: sadly darkness is disappearing and aurora hunting is slim for us visual people ;)

Alexandra


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Carbon60
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Re: Geomagnetic Unrest May 2019

Post by Carbon60 »

Thanks, Alexandra. Slim pickings all around at the moment. Maybe AR12740 will throw up something interesting this time around.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Geomagnetic Unrest May 2019

Post by marktownley »

Good ripples Stuart. Hoping for more at the end of october when we head off to Iceland...


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