Sun Unleashes Most Powerful Flare of 2015 (as of May 5)




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Published on May 8, 2015

An impulsive, major solar flare reaching X2.7 erupted at 22:05 UTC (5:05 p.m. CDT) and ended at 22:15 UTC, peaking at 22:11 UTC.

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This is the most intense flare so far, in year 2015. It is not the most powerful in this current sunspot cycle.

This X2.7-level flare produced a level R3 (Strong) shortwave radio blackout on the sunlit side of Earth, which was over the Pacific region.

A coronal mass ejection was associated with this flare. The flare originated in Sunspot Active Region NOAA 2339.

In addition, the flare produced a two-minute radio burst, heard as a roar of static from shortwave receivers on Pacific isles and western parts of North America. A radio burst of this kind is generally short-lived, but can cause interference for radar, GPS, and satellite communications.

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-- Tomas, Amateur radio guy and space weather guru; NW7US
-- Home page: http://NW7US.us/ and http://SunSpotWatch.com
-- Contributing editor, propagation and space weather columns in + "CQ Amateur Radio Magazine", http://www.cq-amateur-radio.com/ + "The Spectrum Monitor" http://www.thespectrummonitor.com/

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Video copyright, 2015, by Tomas Hood / NW7US. All rights reserved.


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