A fast, far-sided halo CME was observed beginning at 04:36 UTC on 23 July in coronagraph imagery. The event originated from old Region 2665 (S06, L=111) which was responsible for two M-class flares during its rotation across the visible disk. The imagery above shows the event as seen from the NASA STEREO A spacecraft (left and right images) and the coronagraph on the NASA SOHO spacecraft (center). This CME is on the opposite side of the Sun and will not be geoeffective.
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Meet the Raspberry Pi” is the topic of the new (February 28) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Engineering, “ARRL The Doctor is In” is an informative discussion of all things technical... Read more