对于太阳来说，这是忙碌的一周，在一些北部和中西部的州，极光观测者正在寻找著名的一瞥多彩的天空从周四晚上到10月9日周五早上，可能会受益于增强的太阳活动。
周二，日冕物质抛射（CME），即嵌入磁场中的带电粒子的大规模爆发，离开太阳前往地球。
这次喷射与一次中等程度的太阳耀斑有关。
由于日冕物质抛射，国家海洋和大气管理局的空间天气预测中心（SWPC）已经发布了从周四晚上到周五的中度地磁暴观察。
根据NOAA的数据地磁暴是“当太阳风与地球周围的空间环境进行非常有效的能量交换时，地球磁层发生的一种主要扰动。”
虽然该机构表示，大部分活动将是轻微的，但可能会有一段时间的中等风暴活动。英国气象局表示，G3水平很有可能会很高。
SWPC表示，太阳活动可能会对我们的技术基础设施造成轻微影响，但“基本上是可控的”
从好的一面来看，当来自太阳的带电粒子撞击地球大气层时，北极光会出现在夜空中，在通常不会出现的地方也可以看到。
“极光可能会出现在纽约州、威斯康星州和华盛顿州，”SWPC在其警报中说。
根据英国气象局的说法，另一个与较小的太阳耀斑有关的CME也正朝着地球前进，但预计只会在周末带来“擦肩而过的打击”。
所有这些太阳天气将在未来几天保持不稳定状态。但是你是否能看到极光取决于芝加哥商业交易所（Chicago Mercantile Exchange）到达时，云层和磁场的方向CME的磁场。
当地磁活动变得更强时，有时可以在比平时更靠南的地方看到极光。
Multiple solar eruptions could spark auroras across the northern US starting tonight
It＇s been a busy week for the sun， and aurora watchers in some northern and upper Midwest states looking for a glimpse of the famedcolorful skycould benefit from enhanced solar activity Thursday night into Friday morning， Oct． 9．
On Tuesday， a coronal mass ejection （CME）， a massive burst of charged particles embedded in a magnetic field， departed the sun bound for Earth．
The ejection is associated with a moderate solar flare．
The National Oceanic and Atmospheric Administration＇s Space Weather Prediction Center （SWPC） has issued a moderate Geomagnetic Storm Watch beginning Thursday evening into Friday， as a result of the CME．
According to NOAA， a geomagnetic storm is ＂a major disturbance of Earth＇s magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth．＂
While the agency says much of the activity will be minor， there could be periods of moderate storm activity． The UK Met Office says there＇s even a slight chance of strong G3 levels．
The SWPC says the solar activity could create minor impacts to our technological infrastructure， but it＇s ＂mainly manageable．＂
On the bright side， the aurora borealis， which appears in the night sky when electrically charged particles from the sun hit Earth＇s atmosphere， could be visible in areas that don＇t normally experience it．
＂Aurora may be seen as low as New York to Wisconsin to Washington state，＂ SWPC said in its alert．
Another CME linked to a smaller solar flare is also headed toward Earth but is only expected to deliver a ＂glancing blow＂ over the weekend， according to the UK Met Office．
All this solar weather will keep conditions unsettled to active over the next few days． But whether you＇ll be able to see the auroras depends on exactly when theCMEarrives， the cloud cover and the magnetic orientation of theCME＇s magnetic field．
When geomagnetic activity becomes stronger， the aurora can sometimes be seen farther south than usual．
