Dark Matter

[Solar (Ralph Smith)]

Something is in front of the Prominence, I am not too sure what.
What ever it is it is not transmitting light in the H-Alpha wave length.

[brian nordstrom (As avatar)]

definatly something 'Spherical' ? , good capture Ralph .
Brian.

[Derek Klepp]

Ralph looks like an arching filament coming up underneath or in front of the other.This is a pretty complex region.This happens when there is flaring in an AR with a filament close by or overlapping.Try to get "Astrophysics of the Sun" Zirin. Its old but very helpful in explaining various phenomena.