The big filament is not there anymore!
The 'mega-cool' filament is not visible anymore. It lasted for 2 solar rotations.
Nederlandstalige versie /Version franaise (traduit par PRAZZOLI Marc)
posted on April 11, 2005
In the month February, an extremely large filament was visible on the solar disk. The black line in the left H-alpha picture, taken by the groundbased observatory in Catania, represents this plasma cloud. It rotated again over the eastlimb during the first part of March: on March 14, it was again clearly visible in the H-alpha pictures. In the picture the most at the right, taken on April 11, the filament is not present any more as a whole, only a small part, hardly visible remained.