Posts Tagged ‘Auroras

Yesterday’s geomagnetic storm caused some great auroras

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A CME hit Earth’s magnetic field on Oct. 24 at 1800 UT, sparking a strong (Kp=7) geomagnetic storm. Auroras were sighted in the United States as far south as Arkansas and California

Video 1: The SOlar Heliospheric Observatory (SOHO) captured this “coronograph” – so-called because the images block the sun, and only show the sun’s atmosphere, or corona. The coronal mass ejection (CME) that caused aurora to appear on the evening of October 24th begins when the counter in the lower left hand hits October 22, 1:36 (which translates to October 21, 9:36 PM ET).

Video 2:Aurora Timelapse from Michigan 24-10-2011

Shawn Malone, Marquette Michigan Oct. 24, 2011

Branislav Beliancin, Spjelkavik, Norway Oct. 25, 2011

Brian Emfinger, Ozark, Arkansas, USA Oct. 24, 2011

Randy Halverson, Cross Plains, Wisconsin Oct. 24, 2011

Geir Øye, Ørsta, Norway Oct. 25, 2011

Ray Mckenzie, Saskatoon, Saskatchewan, Canada Oct. 24, 2011

Anders Olav Bjorkavag, Ålesund, Norway Oct. 24, 2011

Malcolm Park, Whitby Ontario, Canada Oct. 24, 2011

Frank Olsen , Tromsø, Norway Oct. 25, 2011

Fredrik Broms, Kvaløya, Norway Oct. 24, 2011

24 -10 - 2011, Tobias Billings

Written by physicsgg

October 25, 2011 at 5:35 pm