6th of Nov. 07
Spotting Auroras... How I do it?
Frequently Asked Questions
High vs. High Middle Lat. comparison
Valkeakoski, Finland (Geographic Longitude = 24E; Geographic Latitude = 61N; Corrected Magnetic Latitude = 57)
This was an odd double CME event...It started with small only 10 degree high green arc and nice red pillars at the east and west, but very soon it started to weaken...for few minutes. Then it started again with HUGE illuminating whitish glow which covered half of the sky and looked more like overcast sky than an aurora. Also very soon those red pillars grew back again and this larger than ever. After that the display engulfed the zenith and died. About hour after it's beginning it was more or less all over.