Bastille Day event

From Wikipedia, the free encyclopedia

You have new messages (last change).
The Bastille Day Flare at the 19.5 nm wavelength, as recorded by the Extreme ultraviolet Imaging Telescope instrument on the SOHO spacecraft
The Bastille Day Flare at the 19.5 nm wavelength, as recorded by the Extreme ultraviolet Imaging Telescope instrument on the SOHO spacecraft

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

 This astronomy related article is a stub. You can help Wikipedia by expanding it.
Retrieved from "http://en.wikipedia.org../../../b/a/s/Bastille_Day_event_6748.html"