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</o:shapelayout></xml><![endif]--></head><body lang=PT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:red;mso-fareast-language:PT'>MOST X-FLARE: </span></b><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'>Big sunspot AR1515 erupted on July 2nd at 10:52 UT, producing an M5.6-class solar flare that almost crossed the threshold into </span><span style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'><a href="http://spaceweather.com/glossary/flareclasses.html?PHPSESSID=qvko40d74m77k43csos48g1oq0"><span lang=EN-US style='color:#0066CC'>X-territory</span></a></span><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'>. </span><span style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'>NASA's Solar Dynamics Observatory recorded the extreme ultraviolet flash:<o:p></o:p></span></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:center'><a href="http://spaceweather.com/images2012/02jul12/ipad/m6.m4v?PHPSESSID=qvko40d74m77k43csos48g1oq0"><span style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#0066CC;mso-fareast-language:PT;text-decoration:none'><img border=0 width=640 height=526 id="Imagem_x0020_1" src="cid:image003.jpg@01CD5918.F3D656D0" alt="Descrição: http://spaceweather.com/images2012/02jul12/m6_strip2.jpg"></span></a><span style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'>A pulse of x-rays and UV radiation from the flare illuminated Earth's upper atmosphere, producing waves of ionization over Europe. Such waves alter the propagation of low-frequency radio transmissions. In Lofoten, Norway, Rob Stammes recorded the ionospheric disturbance using a 60 kHz receiver: </span><span style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'><a href="http://spaceweather.com/submissions/large_image_popup.php?image_name=Rob-Stammes-SID-July-2--2012_1341247692.jpg"><span lang=EN-US style='color:#0066CC'>data</span></a></span><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'>.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'>The eruption also hurled a CME into space, but not directly toward Earth. The </span><span style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'><a href="http://spaceweather.com/images2012/02jul12/cme_c2.gif?PHPSESSID=qvko40d74m77k43csos48g1oq0"><span lang=EN-US style='color:#0066CC'>south-traveling cloud</span></a></span><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'> could deliver a glancing blow to our planet's magnetosphere on July 4th or 5th. Stay tuned for updates. [</span><span style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'><a href="http://spaceweather.com/images2012/02jul12/ipad/m6.m4v?PHPSESSID=qvko40d74m77k43csos48g1oq0"><span lang=EN-US style='color:#0066CC'>SDO movie</span></a></span><span lang=EN-US style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#333333;mso-fareast-language:PT'>]<o:p></o:p></span></p><p><span lang=EN-US>Fonte: </span><span lang=EN-US style='font-family:"Verdana","sans-serif"'>Space Weather website </span><span style='font-family:"Verdana","sans-serif"'><a href="http://spaceweather.com" target="_blank"><span lang=EN-US>http://spaceweather.com</span></a></span><span style='font-family:"Verdana","sans-serif"'> <span lang=EN-US><o:p></o:p></span></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>