S130513 0217 UTC - Nice X1.7 flare

S130513 0217 UTC - Nice X1.7 flare from the top of of a coronal loop, with types II (fundamental and harmonic), III, VII, and continuum.

Many thanks to NOAA SWPC, Culgoora and Learmonth Observatories in Australia, SDO, and LMSAL Laboratory.