SOMETHING IN THE OFFING: A potentially significant active region is about to rotate onto the Earthside of the sun. A hot plume of plasma flying over the sun's northeastern limb heralded its approach during the early hours of April 15th. The eruption hurled a coronal mass ejection toward NASA's STEREO-B spacecraft. Analysts at the Goddard Space Weather Lab have prepared a forecast track showing the progress of the cloud. No planets are in the line of fire. Stay tuned for updates as the sun turns to reveal the active region in the days ahead. Solar flare alerts: text, phone. - Space Weather.
NEW SUNSPOTS AND EASTERN LIMB ERUPTION: An eruption registering as a C2.7 flare took place off the northeast limb early on Sunday morning. A coronal mass ejection did result, but is not Earth directed. New cluster 1459 continues to rotate further into direct view and several spots are now visible. So far this region appears to be stable. Elsewhere, Sunspot 1455 continues to rotate towards the western limb and may produce C-Class flares. Old Sunspot 1442 will soon be making its return to the Earth facing side of the Sun. The Solar X-Rays just detected a C2 solar flare around this region while still hiding on the eastern limb. An impressive eruption was captured off the limb by SDO. Somewhat of a CME was produced but is heading to the east and not towards Earth. - Solar Ham.WATCH: Eastern Limb Eruption.
UPDATE: Spectacular Explosion Registers M1.7Solar Flare - Eruption Produces Massive CME!
WATCH: Massive CME on the sun.SPECTACULAR EXPLOSION: Magnetic fields on the sun's northeastern limb erupted around 17:45 UT on April 16th, producing one of the most visually-spectacular explosions in years. NASA's Solar Dynamics Observatory recorded the blast at extreme ultraviolet wavelengths. The explosion, which registered M1.7 on the Richter Scale of solar flares, was not Earth-directed. A CME produced by the blast is likely to hit NASA's STEREO-B spacecraft, but probably no planets. This event confirms suspicions that an active region of significance is rotating onto the Earth-facing side of the sun. Using data from SDO, Steele Hill of NASA's Goddard Space Flight Center has assembled a must-see movie of the event. The movie shows the explosion unfolding at 304 Angstroms, a wavelength which traces plasma with a temperature around 80,000 K. - Space Weather.