Jan Mikael (7
"INFO: Solar Mega-filament"
> Space Weather News for Dec. 6, 2010
A spectacular filament of magnetism is snaking around the sun's
southeastern limb. From end to end it stretches more than 700,000
km--a full solar radius or almost twice the distance from Earth to the
Moon. The massive structure is an easy target for backyard telescopes
(monitoring is encouraged) and it has the potential for an impressive
eruption if it happens to collapse in the hours or days ahead.
Check http://spaceweather.com for pictures and updates.