ВНИМАНИЕ! На форуме завершено голосование в конкурсе астрофотография месяца - ОКТЯБРЬ!
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Active region 1319 contains so many individual sunspots that some observers have likened it to a swarm of army ants. The swarm is growing. Over the weekend, the sunspot group's total area nearly tripled as shown in this movie from the Solar Dynamics Observatory. As AR1319 has grown, the complexity of its magnetic field has increased as well. The sunspot's magnetic canopy is now unstable and harbors energy for strong M-class solar flares. NOAA forecasters estimate a 40% chance of such an eruption during the next 24 hours.
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