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Tópico em 'Astronomia' iniciado por luismeteo3 13 Fev 2018 às 17:35.
An unexpected KP7 solar storm has arrived
"SURPRISE GEOMAGNETIC STORM: A strong G3-class geomagnetic storm is in progress on Aug. 26th as Earth passes through the wake of a CME that arrived with little fanfare approximately 24 hours ago. Strong magnetic fields in the CME's wake have opened a crack in Earth's magnetosphere, allowing solar wind to enter. So far auroras have been sighted in Scandinavia, Canada, and northern-tier US states such as Michigan and New York."
GOES magnetometer is showing decent activity:
New sunspot AR2720 is not only large, but its polarity is reversed:
"REVERSE POLARITY SUNSPOT: New sunspot AR2720 is not only large, but also strange. Its magnetic polarity is reversed. The North and South ends of its enormous magnetic field are backwards compared to the norm for sunspots in the current solar cycle, decaying Solar Cycle 24. Could AR2720 be the first big sunspot of the next solar cycle, Solar Cycle 25, popping up now in the middle of solar minimum? Stay tuned for more information about this intriguing possibility after the current geomagnetic storm is over. Read on...."
Em português significa o que?
Para nos nada é mais curiosidade, basicamente diz que podem existir auroras mais fortes
Foi uma tempestade solar inesperada...
Tao não tá assim tao adormecido o nosso sol.
Sempre pronto para surpresas...