1~18~12~ Space Weather Update ~ Solar Prominence~ Solar Wind Speed 389
SOLAR PROMINENCE: Today, a network of plasma-filled magnetic filaments is rising over the sun's northwestern limb. Some of the arcs in this Solar Dynamics Observatory image taken during the early hours off Jan. 18th are nearly 500,000 km long:
The vast structure is an easy target for backyard solar telescopes. If you have one, take a look. Any instability in the magnetic thicket of this prominence could produce a spectacular eruption framed by the black of space over the sun's horizon.