Four, count 'em, 4 X-class flares in two days (May 17, 2013)
Hi-res TIF (2.5M)
A very energetic active region popped off four X-flares (largest class) in just two days (May 13, 15, 2013), each also was associated with a fast coronal mass ejection (CME), which can be seen in views from SOHO's LASCO C3 coronagraph. This active region had a very tangled magnetic field structure. The action was caught by SOHO's C3 coronagraph. The Sun itself (represented by the central, white circle) is blocked out by an occulting disk, so that the fainter structures beyond the Sun's corona can be observed. The extended white just to the Sun?s left is Mercury, whose brightness causes the light to spread out across our CCD.
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.