Aurora Borealis 30 Oct -Dec 2003

After October's major hurries with huge auroras there was a 3 weeks' rest before a strong CME hit the earth again on the 20th Nov. Much of the Scandinavia was cloudy and although weather in my area was driven by a high pressure, there was a dense fog cloud layer most of the night preventing witnessing the display at its full glory. However, at 20-23 UT I had some openings to make observations and also could do some photography from home terass. There was no point to go to look for dark skies as the foggy sky looked cloudy in all directions.
What was special in this display (much like in April the 6th 2000 display) was that northern sky was practically empty of auroras while in the south auroras extended as low as I could see under foggy conditions. Also the very extensive red colour resembled April's display. Physically both displays were "driven" with exceptionally negative figures in planetary magnetic field's z-component values (Bz): in April it was (if I recall it right) about -50nT while this new one showed values down to -55nT.
The bright yellowish spot in the horizon is light pollution from a nearby greenhouse.
The last (blue) image is a sample from the 8th Dec. December itself was quite cloudy and also auroral activity was not too spectacular (based on data in web).


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Aurora 2003 root

Aurora 29/30 Oct 2003       Aurora Jan-Feb 2004

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