Pick of The Week
 
 

Sputtering Active Regions (December 11, 2002)

  • Image: Higher resolution version (TIF,2.8M)
  • Movies: MPEG (4.3M), Quicktime (4.5M), Quicktime (small) (1.2M)
  • A pair of active regions seen in extreme ultraviolet light (ionized helium at 304) sputtered and blossomed over a two day period, 26-28 November 2002. The region on the left blasts out particles in narrow spurts at least nine times; the one on the right lets loose one larger blast near the end of the sequence. In the meantime, giant loops of particles that follow magnetic field lines arc out and back, seeming to dance above of the Sun's surface. Emission in this spectral line shows the upper chromosphere at a temperature of about 60,000 degrees K. The actual sequence is composed of 187 images played at 15 frames per second-this translates into an image taken about every 12 minutes for the two day period. Solar north is to the left in the image and video clip.

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