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The Sun giveth, and the Sun taketh away.
is apparently giving China a bit of a headache.
Solar flares are classified as A, B, C, M or X according to the peak flux (in watts per square meter, W/m2) of 100 to 800 picometer X-rays near Earth, as measured on the GOES spacecraft. Each class has a peak flux ten times greater than the preceding one, with X class flares having a peak flux of order 10−4 W/m2. Within a class there is a linear scale from 1 to 9, so an X2 flare is twice as powerful as an X1 flare, and is four times more powerful than an M5 flare. The more powerful M and X class flares are often associated with a variety of effects on the near-Earth space environment. Although the GOES classification is commonly used to indicate the size of a flare, it is only one measure.
The radiation risks posed by coronal mass ejections are a major concern in discussions of a manned mission to Mars, the moon, or other planets. Energetic protons can pass through the human body, doing biochemical damage,[4] and hence present a hazard to astronauts during interplanetary travel. Some kind of physical or magnetic shielding would be required to protect the astronauts. Most proton storms take two or more hours from the time of visual detection to reach Earth's orbit. A solar flare on January 20, 2005 released the highest concentration of protons ever directly measured,[5] taking only 15 minutes after observation to reach Earth, indicating a velocity of approximately one-third light speed, giving astronauts as little as 15 minutes to reach shelter.
powerful solar eruption that triggered a huge geomagnetic storm has disturbed radio communications and could disrupt electrical power grids, radio and satellite communication in the next days, NASA said.
A strong wave of charged plasma particles emanating from the Jupiter-sized sun spot, the most powerful seen in four years, has already disrupted radio communication in southern China. The Class X flash -- the largest such category -- erupted at 0156 GMT Tuesday, according to the US space agency.
Originally posted by 9Cib27
Some more frightening information
Originally posted by timewalker
Just a question.
Does anyone else get insomnia during these periods? Before knowing about them. I seem to have a bout of it every time there is a big one. So much so I was going to make a thread in times past.
I can't help but ask now, cause I'm running on fumes. Past 4 nights
Originally posted by OptimisticPessimist
Originally posted by 9Cib27
Some more frightening information
Will you please stop fearmongering!!!!
There is NOTHING "frightening" about an X2 Class flare, unless you are an astronaught. Sheesh!
Stop being so overdramatic and getting naive or otherwise not-in-the-know people worried, for goodness' sake!
Four years ago we had worse - did any of you wake up to destroyed electronic equipment, death and destruction from that particularly harsh solar event?
What about the X48 that we've had before, remember all the devastation that one caused?...No?? Hmm.
An X2 is NOT the Carrington Event.
Originally posted by sliceNodice
Looks like it is starting. Look at the graphs.
www2.nict.go.jp...