17 April 2024 - Mission Day: 10365 - DOY: 108
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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    SOHO began its Weekly Pick some time after sending a weekly image or video clip to the American Museum of Natural History (Rose Center) in New York City. There, the SOHO Weekly Pick is displayed with some annotations on a large plasma display.

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