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AR1520's Parting Shot: July 19, 2012 M7.7 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.

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Video showing the flare in 304 and 335 Angstrom light.  Still showing the flare in 304, 131 and 335 Angstrom light.    Video showing the flare in 304 and 335 Angstrom light. Still showing the flare in 304, 131 and 335 Angstrom light.
Duration: 40.4 seconds
Available formats:
  1280x720 (59.94 fps) QT         676 MB
  1280x720 (59.94 fps) QT         233 MB
  1280x720 (29.97 fps) QT         83 MB
  1280x720 (29.97 fps) QT         24 MB
  1280x720 (29.97 fps) WMV         24 MB
  1280x720 (30 fps) QT         22 MB
  960x540 (29.97 fps) MPEG-4   19 MB
  640x360 (29.97 fps) QT         19 MB
  1280x720 (29.97 fps) MPEG-4   18 MB
  2560x1440 JPEG         5 MB
  1280x720   JPEG         352 KB
  960x540 (29.97 fps) WEBM         9 MB
  320x180     JPEG         71 KB
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Cropped image of the flare in 304 Angstrom ultraviolet    Cropped image of the flare in 304 Angstrom ultraviolet

Available formats:
  1271 x 780       JPEG   501 KB


Full disk 4k image of the flare in 304 Angstrom ultraviolet    Full disk 4k image of the flare in 304 Angstrom ultraviolet

Available formats:
  4096 x 4096     JPEG       4 MB


Cropped image of the flare in 131 Angstrom ultraviolet    Cropped image of the flare in 131 Angstrom ultraviolet

Available formats:
  1981 x 1304     JPEG       1 MB


Full disk 4k image of the flare in 131 Angstrom ultraviolet    Full disk 4k image of the flare in 131 Angstrom ultraviolet

Available formats:
  4096 x 4096     JPEG       6 MB


Full disk 4k image of the flare in 335 Angstrom ultraviolet    Full disk 4k image of the flare in 335 Angstrom ultraviolet

Available formats:
  4096 x 4096     JPEG       7 MB

Short URL to This Page:http://svs.gsfc.nasa.gov/goto?11047
Animation Number:11047
Completed:2012-07-19
Video Editor:Scott Wiessinger (USRA)
Producer:Scott Wiessinger (USRA)
Writer:Karen Fox (ASI)
Series:Heliophysics Breaking News
Goddard TV Tape:G2012-048 -- Heliophysics Breaking News 2012 collection
Please give credit for this item to:
NASA/Goddard Space Flight Center
 
Keywords:
SVS >> HDTV
SVS >> Music
SVS >> Solar Flare
SVS >> Solar Ultraviolet
SVS >> Sun
GCMD >> Earth Science >> Sun-earth Interactions
SVS >> Space Weather
SVS >> SDO
SVS >> Edited Feature
SVS >> Solar Dynamics Observatory
SVS >> Heliophysics
SVS >> Corona
NASA Science >> Sun
 
 


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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0

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