Bastille Day event

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The Bastille Day Flare or Bastille Day Event was a powerful solar flare on July 14, 2000 occurring near the peak of the solar maximum.[1][2] Active region 9077 produced an X5-class flare, which caused an S3 radiation storm on Earth fifteen minutes later as energetic protons bombarded the ionosphere.[1][3] It was the biggest solar radiation event since 1989.[3] The proton event was four times more intense than any previously recorded.[citation needed] The flare was followed by a full-halo coronal mass ejection.[1]

[edit] References

  1. ^ a b c "Space Radiation Storm", NASA, 2004-07-14. Retrieved on 2007-03-09. 
  2. ^ Associated Press. "NASA Says Solar Flare Caused Radio Blackouts", The New York Times, 2000-07-14. Retrieved on 2007-03-09. 
  3. ^ a b Roylance, Frank D.. "Solar flare biggest since '89", Contra Costa Times, 2000-07-15. Retrieved on 2007-03-09. 

[edit] External links

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