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(有片)12月28-29號地球主導的M -5級太陽風暴將抵達

2011年12月27日 5:51:29

MEs TARGET EARTH, MARS: The odds of a geomagnetic storm on Dec. 28th are improving with the launch of two CMEs toward Earth in less than 24 hours. NASA's STEREO-B spacecraft photographed this one on Dec. 26th:

According to a forecast track prepared by analysts at the Goddard Space Weather Lab, the cloud should squarely strike Earth's magnetic field on Dec. 28th at 20:22 UT (+/- 7 hours). Another CME could deliver a glancing blow a few hours earlier on the same date. The double impact is expected to spark mild-to-moderate geomagnetic storms at high latitudes. Aurora alerts: textvoice.

Uploaded by on Dec 26, 2011