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On June 7th at 0641 UT, magnetic fields above sunspot complex 1226-1227 became unstable and erupted. The resulting blast produced an M2-class solar flare, an S1-class radiation storm, and an unbelievable movie:
Much of the plasma thrown up by the blast simply fell back to the sun–indeed, that’s what makes the footage so dramatic. In the movies you can see blobs of hot gas as large as Earth making bright splashes where they hit the stellar surface. Some plasma, however, reached escape velocity and left the sun in the form of a coronal mass ejection: movie. Traveling faster than 1100 km/s, the CME should deliver a glancing blow to Earth’s magnetic field during the late hours of June 8th or June 9th. High-latitude sky watchers should be alert for auroras when the CME arrives.
A video with commentary from solar physicist C. Alex Young of NASA’s Goddard Space Flight Center shows material splashing back to the stellar surface. “I’ve never seen material released this way before,” he says in the video. “It looks like someone kicked a clod of dirt in the air–an amazing, amazing event.”
Coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) are still monitoring the CME as it billows away from the sun. Watch the cloud expand. The speckles are caused by energetic charged particles hitting the camera’s CCD array. This is what we mean by a “radiation storm”; the particles were accelerated by the explosion and are now peppering Earth-orbiting satellites and spacecraft like SOHO.
Although the blast was not squarely Earth-directed, it will affect our planet. The CME should deliver a glancing blow to Earth’s magnetic field during the late hours of June 8th or June 9th. High-latitude sky watchers should be alert for auroras when the CME arrives.
Much of the plasma thrown up by the blast simply fell back to the sun–indeed, that’s what makes the footage so dramatic. In the movies you can see blobs of hot gas as large as Earth making bright splashes where they hit the stellar surface. Some plasma, however, reached escape velocity and left the sun in the form of a coronal mass ejection: movie. Traveling faster than 1100 km/s, the CME should deliver a glancing blow to Earth’s magnetic field during the late hours of June 8th or June 9th. High-latitude sky watchers should be alert for auroras when the CME arrives.
A video with commentary from solar physicist C. Alex Young of NASA’s Goddard Space Flight Center shows material splashing back to the stellar surface. “I’ve never seen material released this way before,” he says in the video. “It looks like someone kicked a clod of dirt in the air–an amazing, amazing event.”
Coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) are still monitoring the CME as it billows away from the sun. Watch the cloud expand. The speckles are caused by energetic charged particles hitting the camera’s CCD array. This is what we mean by a “radiation storm”; the particles were accelerated by the explosion and are now peppering Earth-orbiting satellites and spacecraft like SOHO.
Although the blast was not squarely Earth-directed, it will affect our planet. The CME should deliver a glancing blow to Earth’s magnetic field during the late hours of June 8th or June 9th. High-latitude sky watchers should be alert for auroras when the CME arrives.
They are warning that there is a possibility of communication and power grid problems, with some outages expected.
Stevo
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