Archive for solar storm

September 11th, 2015: High-speed solar wind stream hit Earth’s magnetic field. The impact sparked a strong (Kp=7) geomagnetic storm

Posted in 2015, astronomy, Galaxy with tags , on September 11, 2015 by MARIE EMMANUELLE QUILICHINI

marketa-S-Murray

Taken by marketa S Murray on September 11, 2015 @ Fairbanks – Alaska

During the early hours of Sept. 11th, a high-speed solar wind stream hit Earth’s magnetic field. The impact sparked a strong (Kp=7) geomagnetic storm and Northern Lights in the USA as far south as Wisconsin and Washington State. In Alaska, “the entire sky was moving like sea waves in colors of green and purple,” reports aurora tour guide Marketa Murray

“This was the most beautiful night in a long time,” she says. “Our guests were crying and couldn’t catch their breath.”

More breathtaking auroras could appear tonight. NOAA forecasters estimate a 55% chance of geomagnetic storms on Sept. 11-12 as the solar wind continues to blow. Aurora alerts: text or voice

http://spaceweather.com/

NASA’s Solar Dynamics Observatory (SDO) is monitoring a hole in the sun’s atmosphere–a “coronal hole.”

Posted in 2015, astronomy, Galaxy with tags , , , , , on August 26, 2015 by MARIE EMMANUELLE QUILICHINI

sun_hole

It is colored deep-blue in this extreme UV image of the sun taken by SDO on Aug. 26th

CLICK HERE ON LINK TO SEE FULL IMAGE AND ZOOM ON IT

http://www.spaceweather.com/images2015/26aug15/ch.jpg?PHPSESSID=ajitmknl5666rvrf1cpbab5ia4

Coronal holes are places where the sun’s magnetic field opens up and allows solar wind to escape. In the image, above, the sun’s magnetic field is traced by pale loops. White arrows show the flow of material out of the hole.

A stream of solar wind flowing from this coronal hole will probably reach Earth on Aug. 28-29. Its impact could spark a geomagnetic storm at the end of this week. If so, bright moonlight will temper the visibility of any auroras. Aurora alerts: text or voice

http://www.spaceweather.com/

NASA : Getting Ready for the Next Big Solar Storm

Posted in Uncategorized with tags , , , , , , on June 22, 2011 by MARIE EMMANUELLE QUILICHINI

Hotting up: Sun wakes up from sleep for busiest sunspot cycle in years and threatens to disrupt Earth communications and power

Posted in Uncategorized with tags , , , on June 8, 2011 by MARIE EMMANUELLE QUILICHINI


A new NASA project called “Solar Shield” could help keep the lights on North American Power Grid

Posted in Uncategorized with tags , , , , , , , , , , , , , , , , , , on March 14, 2011 by MARIE EMMANUELLE QUILICHINI


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