Halo CMEs? We Got 'Em (November 30, 2012)
Hi-res TIF (3.3M)
The Sun spewed out about a dozen coronal mass ejections (CMEs) over a six-day period (Nov. 18-24, 2012), and several of them were "halo" CMEs in which the leading edge of the particle clouds seem to expand in a roughly circular shape around the Sun, not because it surrounds the Sun, but because it is moving directly toward or away from the observer. The frequency of these storms is typical of solar activity as we move closer to its period of solar maximum.
SOHO began its Weekly Pick some time after sending a weekly image or video clip to the American Museum of Natural History (Rose Center) in New York City. There, the SOHO Weekly Pick is displayed with some annotations on a large plasma display.
If your institution would also like to receive the same Weekly Pick from us for display (usually in Photoshop or QuickTime format), please send your inquiry to firstname.lastname@example.org.