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Prominence, March 20, 2012
Bright tree-like solar prominence on the Sun today. This was made with a monochrome video camera (DMK21AU04) video camera as an AVI file of about 250 frames at 30 fps.
Processing was moderate wavelets in Registax 4 using 3 alignment points along the prominence. The dark area at lower left is a black circle superimposed on the overexposed Sun's disc to block the glare.
As near as I can estimate, this prominence is about 35,000 to 45,000 miles tall and about 50,000 to 60,000 miles long.
A prominence is hot hydrogen plasma trapped in loops of the Sun's magnetic field, and lifted free of the denser parts of the solar atmosphere. In this case, the telescope passes only the light of ionized hydrogen, so the bright arc surrounding the dark disc is the limb of the chromosphere.
Prominence, March 20, 2012
Bright tree-like solar prominence on the Sun today. This was made with a monochrome video camera (DMK21AU04) video camera as an AVI file of about 250 frames at 30 fps.
Processing was moderate wavelets in Registax 4 using 3 alignment points along the prominence. The dark area at lower left is a black circle superimposed on the overexposed Sun's disc to block the glare.
As near as I can estimate, this prominence is about 35,000 to 45,000 miles tall and about 50,000 to 60,000 miles long.
A prominence is hot hydrogen plasma trapped in loops of the Sun's magnetic field, and lifted free of the denser parts of the solar atmosphere. In this case, the telescope passes only the light of ionized hydrogen, so the bright arc surrounding the dark disc is the limb of the chromosphere.