Solar Prominence Details (Rob Foster)

Contains: Solar system body or event

Solar Prominence Details

This is a stacked image from the among the shortest exposures (1/3000 to 1/5000 sec) from 20 different bracketed shots in order to tease out the details of the solar prominences. I excluded several for the final image ending up with a total of 14 images combined for the final image. These brilliant orange-pink-red eruptions of plasma are hot gas made of electrically charged hydrogen and helium, extending outward from the sun's surface, and flow along the sun's magnetic fields. They are anchored to the sun's photosphere, the lowest level of the sun's atmosphere, and are not ejected into space, as with a coronal mass ejection. They were an unexpected sighting with the naked eye at totality, particularly the triangular shaped prominence at 6:00. Stacking also revealed very fine filamentary-like prominences @ 9:30, not well seen in the individual frames. The 6:00 prominence suggests the loop shape in some frames, though the blended image blurred some of this detail. Typically, solar prominences form over a timescale of a day or so, but can persist for weeks to months, and can extended hundreds of thousands of miles off of the surface.

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