Very stable ground curr pulsations
Taken by Rob Stammes on October 23, 2016 @
Polarlightcenter Lofoten Norway.
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Details:
Just after midnight UTC and around 02.36 local time,very stable magnetospheric pulsations as induced currents in my ground current instruments.Period time 73 seconds for about one hour.Pc 4 pulsations.
Photographer's website:
http://polarlightcenter.com
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