เหตุการณ์ใน-นอกโลก VS ภัยธรรมชาติ และupdate พายุสุริยะ

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X-FLARE! Big sunspot AR1520 unleashed an X1.4-class solar flare on July 12th at 1653 UT. Because this sunspot is directly facing Earth, everything about the blast was geoeffective. For one thing, it hurled a coronal mass ejection (CME) directly toward our planet. According to a forecast track prepared by analysts at the Goddard Space Weather Lab, the CME will hit Earth on July 14th around 10:20 UT (+/- 7 hours) and could spark strong geomagnetic storms. Sky watchers should be alert for auroras this weekend. Geomagnetic storm alerts: text, voice.


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The explosion also strobed Earth with a pulse of extreme UV radiation, shown here in a movie recorded by NASA's Solar Dynamics Observatory: ​

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The UV pulse partially ionized Earth's upper atmosphere, disturbing the normal propagation of radio signals around the planet. Monitoring stations in Norway, Ireland and Italy recorded the sudden ionospheric disturbance.


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Finally, solar protons accelerated by the blast are swarming around Earth. The radiation storm, in progress, ranks "S1" on NOAA space weather scales, which means it poses no serious threat to satellites or astronauts. This could change if the storm continues to intensify. Stay tuned.​

 

Daily Sun: 12 Jul 12 <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tbody><tr> <td></td> </tr> </tbody></table> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tbody><tr> <td></td> </tr> </tbody></table> Sunspot 1520 has a delta-class magnetic field that harbors energy for X-class solar flares. Credit: SDO/HMI


July 12, 2012



Sunspots and active regions

The following regions with sunspots can be now observed on the Sun's surface
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</td> </tr> <tr> <th width="1%"> Group number </th> <th width="10%"> Sunspots Location on the Sun </th> <th width="11%"> The number of spots in the group </th> <th width="20%"> The classification by the Zurich's modified system </th> <th width="30%"> Area (millions of shares of the solar hemisphere) </th> <th width="9%"> Group length (in degrees) </th> <th width="16%"> Carrington Longitude (in degrees) </th> <th class="last" width="1%"> Group's magnet type </th> </tr> <tr class="separator_1"> <td>
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</td> </tr> <tr> <td nowrap="nowrap"> № 1519 </td> <td> S15 W18 </td> <td class="center"> 01 </td> <td class="center"> Hsx </td> <td class="center"> 0040 </td> <td class="center"> 02 </td> <td class="center"> 108 </td> <td class="center"> Alpha </td> </tr> <tr class="separator_1"> <td>
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</td> </tr> <tr> <td nowrap="nowrap"> № 1520 </td> <td> S17 E06 </td> <td class="center"> 48 </td> <td class="center"> Fkc </td> <td class="center"> 1320 </td> <td class="center"> 18 </td> <td class="center"> 084 </td> <td class="center"> Beta-Gamma-Delta </td> </tr> <tr class="separator_1"> <td>
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</td> </tr> <tr> <td nowrap="nowrap"> № 1521 </td> <td> S22 W07 </td> <td class="center"> 15 </td> <td class="center"> Eso </td> <td class="center"> 0150 </td> <td class="center"> 11 </td> <td class="center"> 097 </td> <td class="center"> Beta-Gamma </td> </tr> </tbody></table> Coordinates and other characteristics of active regions are issued for July 12, 2012 00:31 UT

 

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Earth Experiencing Ongoing Geomagnetic Storm​

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by Mitch Battros - Earth Changes Media

Only C-flares have been seen in the past 24 hours. M-class flares are likely at any time. The Earth is still under the influence of the CME that produced an ongoing geomagnetic storm that started with a shock wave at 17:30 UT on July 15th.
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This event continued today until 06:00 UT on July 16th when a magnetic cloud arrived at the ACE satellite. The Kp index reached 6 and the conditions are still active.
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As the most active sunspot regions make their way around the western limb of the Sun, solar activity should diminish by early Wednesday July 18th.​

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