Scientists and the public alike are in awe over a bizarre video that emerged of a vaporous-looking eddy of solar plasma swirling around the sun’s north pole. The footage was captured on Groundhog Day by NASA’s Solar Dynamics Observatory.
It takes roughly 11 years for a single band of magnetism to work from the 55 degrees to either the pole or the equator. That represents one solar cycle.When a band reaches the equator, however, it encounters a strip of opposing magnetism arriving from the sun’s other hemisphere. That spurs something known as a terminator event, according to McIntosh.
The two opposite fields wage war in spectacular fashion, working to annihilate one another and brewing sunspots. Sunspots are bruiselike discolorations on the sun representing pockets of magnetic flux that hurl energy into space.When that energy is Earth-directed, it can interact with our magnetic field, causing brilliant displays of the northern lights while disrupting GPS equipment and satellites.
At the poles, meanwhile, one band of magnetism disappears and is replaced by a new band of opposite polarity arriving from its origin near 55 degrees north or south latitude. That means the sun’s north and south poles flip polarity every 11 years on average.magnetic field lines between the northern hemisphere’s two bands of opposite polarity.Coronal activity on 10-11 Feb 2023 as recorded by SOHO/LASCO, including a nice polar crown filament eruption on the 10th.
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