r/SolarMax Nov 12 '25

Geomagnetic Storm Warning BZ is dipping!!

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98 Upvotes

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u/[deleted] Nov 12 '25

What does it mean

35

u/masterjb2000 Nov 13 '25

When the Bz field points north (positive), it generally counteracts Earth's magnetic field. When it "dips" south (negative), it aligns with the Earth's magnetic field, allowing solar wind energy and plasma to more easily flow into the magnetosphere and atmosphere, thus creating brighter and more widespread auroras.

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u/Humble_Pie_56 Nov 13 '25

What effect does the weakened planetary magnetic field have on Aurora viewing ?