Increased Auroral Activity Oct. 11-12 from a Halo CME Oct. 6, 2010

A Solar Eruption as the Earth Blocks SDO’s View of the Sun
October 7, 2010
SOHO Pick of the Week - 15 October 2010
A Twisting Solar Prominence (SOHO Pick of the Week)
October 18, 2010
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Around 3:30 UT on October 6, 2010 a filament erupted in the northeast part of the solar disk (upper left area). Moving at around 375 km/s (850,000 miles per hour) the CME combined with the ambient solar wind then over Oct. 10-11, 2010 the earth experienced a glancing blow. As a result a minor geomagnetic storm is in progress. Aurora observers at high latitudes should be on alert in the evenings of Oct. 11-12, 2010. (for information about viewing the aurora check out,

The video below starts with the 304 Angstrom observations, first showing the upper 2/3 of the sun then zooming in on the NE section. Next the same 2/3 view is shown but with the 171 Angstrom telescope. The video again zooms in but in the 171 wavelength. A loop like structure can be seen in the 171 moving up to the NE.

At 6:48 UT a CME was observed by the C2 LASCO coronagraph aboard the SOHO spacecraft. The CME was a faint halo event and most likely due to the filament eruption. The CME was first observed by the C3 coronagraph at 9:42 UT. The video ends with the C2 and C3 observations. (credit: SOHO, SDO and Kevin Schenk)

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