Pick of The Week
 
 

Prominence Eruptions! (January 22, 2004)


Hi-res TIF image (3.1M)


Hi-res TIF image (2.3M)

MPEG
EIT 195-Full Sun Large (1.2M), Small (407K)
EIT 195 Large (705K), Small (230K)
Quicktime
EIT-Full Sun Large (1.0M), Small (251K)
EIT 195 Large (1.0M), Small (171K)

In a matter of hours two large prominence eruptions occurred on the Sun on January 21-22, 2003. The first and smaller filament was located in the Sun's lower left quadrant and its eruption is accompanied by a coronal mass ejection followed by a long cylinder of post-coronal loops. Just hours later another long solar filament (upper right quadrant) was observed erupting as it neared the Sun's edge. The series of stills, taken by the EIT 195 instrument over a six-hour period shows this prominence in profile before, during and after its eruption. (Filaments are called prominences when they can be seen in profile.) This particular prominence was over 50 times the diameter of Earth, reaching almost half way across the Sun. Prominences are cooler structures that "float" above the Sun's surface, sometimes for several weeks. This one has been observed for almost two weeks as it rotated around with the Sun. The video clips show the full disk and a close-up of the second eruption over about a one-day period.


Hi-res TIF image (1.9M)

The C2 coronagraph still shows unusually well defined structure of the second eruption as the cloud of particles expanded well beyond the Sun and out into space.


The image (left) was taken with Coronado's NearStar Telescope at <0.5 H-Alpha. Using a Canon G-2 camera and MaxView 40/MaxPower eyepiece with a 3X Shorty Barlow. Out of 500 Black and White or Grayscale images taken that day I used the best 25 images of the disk and the top 15 of the Prominence. They were stacked and colored in Keith's Image Stacker and then Composite and finale touch-up in PhotoShop. (Courtesy: Gary Palmer of Los Angeles, California)

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