flare

Sun Erupts With 4th X-class Solar Flare This Week

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Natureworldnews, By: James A. Foley, 05/15/2013

 

Solar Flare

 

After not producing any X-class eruptions all year, the Sun has roared to life this week, producing its fourth X-class solar flare of the week on Tuesday. Tuesday's flare came from the same region as the previous X-class flares this week, an active sunspot region known as AR1748. Prior to this week the sunspot region did not even have a name and was difficult to see, but as the region continues to rotate towards Earth, scientists will be able to observe it more clearly. 

 

Registering at X1.2, Tuesday's flare was the weakest of this week's X-class flares, which are the most powerful type of flares that the Sun can unleash. Monday night's X3.2 flare was the strongest of the year. The numbers the flares are assigned correlate to their strength. An X2 is twice as intense as an X1; an X3 is three times as intense, and so on.

 

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X1.7 Flare

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Space Weather Message Code: ALTXMF

Serial Number: 187
Issue Time: 2013 May 13 0206 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2013 May 13 0204 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity.

 

For real-time information on affected area and expected duration please see

 

http://www.swpc.noaa.gov/drap/index.html 

 

 

From: http://www.swpc.noaa.gov/alerts/warnings_timeline.html

 
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