The Aurora Borealis of November 7, 2004
The skies above Minneapolis/St Paul were lit up with the Aurora Borealis on
the night of November 7, 2004. Between 6:30 and well after 11:30 pm, the night
sky was shimmering with green, red, and occasionally purple lights from a coronal
mass ejection that exited the Sun on Friday, November 5. It was one of those
rare moments when we in the cities could see the lights easily, notice the colors,
and not be robbed of the excitement by clouds and rain. I have enclosed some
pictures I took from the backyard in Plymouth, as well as the Space Weather
Now auroral map image for that Sunday night.
Above and below are the nice greens from ionized oxygen. The image below has
the Big Dipper in the lower right.
This last picture (below) faces wese and shows the shimmering lights.
Below is the aurora loop map for 9:00 CST. The dark red shows the extent of
the vivid display well over Minnesota. The category of the geomagnetic storm
was "extreme," and I do not see that description too often. It was
really a wonderful evening.
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