sexta-feira, novembro 02, 2012

ATIVIDADE SOLAR COMPORTAMENTO ANTERIOR E ATUAL.


The Watchers Tweet Tweet In January 2005, some remarkable things happened on the Sun, and the implications are still reverberating through the scientific community. Between January 15th and 19th four powerful solar flares erupted from “sunspot 720″, shown in the picture above. Then on January 20 the fifth explosion produced a coronal mass ejection (CME) that achieved velocities incomparably greater than anything astronomers had seen before. While it often takes more than 24 hours for...

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The Watchers Tweet Tweet A weak CME shock was observed in the solar wind by the ACE and SOHO/CELIAS instruments on October 31st afternoon around 14:45 UTC. The solar wind speed jumped up from 280 km/s up to 370 km/s and also the solar wind density increased. Initial solar wind velocity had declined to about 310 km/s by the end of the day. Current solar wind speed at this time is 304.8 km/sec with density of 0.6 protons/cm3. The origin of the event...





às 04:21