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\nNASA | AR1520's Parting Shot - July 19 M7.7 Flare\n

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\n\nPublisher:\n\nNASA\n\n\n
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\nSun Sends Out Moderate Solar FlareThe sun emitted a moderate solar flare on July 19, 2012, beginning at 1:13 AM EDT and peaking at 1:58 AM. Solar flares are gigantic bursts of radiation that cannot pass through Earth's atmosphere to harm...\nSun Sends Out Moderate Solar Flare

The sun emitted a moderate solar flare on July 19, 2012, beginning at 1:13 AM EDT and peaking at 1:58 AM. Solar flares are gigantic bursts of radiation that cannot pass through Earth's atmosphere to harm humans on the ground, however, when strong enough, they can disrupt the atmosphere and degrade GPS and communications signals.

The flare is classified as an M7.7 flare. This means it is weaker than the largest flares, which are classified as X-class. M-class flares can cause brief radio communications blackouts at the poles.

Increased numbers of flares are currently quite common, since the sun's standard 11-year activity cycle is ramping up toward solar maximum, which is expected in 2013. It is quite normal for there to be many flares a day during the sun's peak activity.

Updates will be provided as they are available on the flare and whether there was an associated Earth-directed coronal mass ejection (CME), another solar phenomenon that can send solar particles into space and affect electronic systems in satellites and on Earth.


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Resource Details

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Media Length
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0:41
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Grade
3rd - 11th
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Subjects
All Subjects
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Media Type
Instructional Videos
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Source:
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\nNASA Goddard\n\n
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Date
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2012
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Language
English
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For Teacher Use
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Fine Print: Educational Use
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nasa, radiation
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solar, flare, sun, goddard, sdo, cme, coronal mass ejection
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