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Astronomie - Sonnenfleck 1967+1968 durch Nebelwolken-Filter

.2.02.2014

Nachfolgende Aufnahmen von Sonnenfleck 1967+1968 durch "Nebelwolken-Filter"vom 2.02.2014 / 12.30 MEZ c-hjkc

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Der Nebel lichtet sich und gibt Chancen für Nebelwolken-Filter auf Sonnenscheibe frei...

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Und schon gibt es ein Blick auf Sonnenfleck 1967...

Blick auf Sonnenfleck 1968 (oben) und 1967 (unten)

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Kleine Nebelwolken-Pause...

Blick auf Sonnenfleck 1967

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Fotos: c-hjkc

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Update: 3.02.2014

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BIG SUNSPOT, HIGH SOLAR ACTIVITY: Solar activity reached high levels yesterday with seven M-class solar flares and three CMEs. Almost all of the explosions were produced by monster sunspot AR1967, shown here in a photo from Chris Schur of Payson, Arizona:

 

AR1967 is wider than the planet Jupiter and its primary dark cores are big enough to swallow Earth many times over. The scale of the thing makes it an easy target for backyard solar telescopes. "I used an Explore Scientific AR152 to take the picture," says Schur. "This is one of the most photogenic sunspots I have ever seen."

 

AR1967 has a 'delta-class' magnetic field that harbors energy for strong eruptions. The growing complexity of the region has prompted NOAA forecasters to boost the odds of X-flares to 50% during the next 24 hours. Because AR1967 is near the center of the solar disk, any eruptions will be squarely Earth directed.
Quelle: Spaceweather

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Update: 5.02.2014

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AS THE SUN TURNS: Carried along by the sun's 27-day rotation, big sunspot AR1967 is turning away from Earth. Ironically this is making the active region even more dangerous. AR1967 is moving toward a location where the sun's spiraling magnetic field is well-connected to our planet and energetic particles can be funneled in our direction. An explosion there could spark a radiation storm around Earth. Click to watch the sun turn:
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AR1967 has a 'beta-gamma-delta' magnetic field that harbors energy for strong eruptions. The past 24 hours has been relatively quiet, but that could be the calm before the storm. NOAA forecasters estimate an 80% chance of M-class solar flares and a 50% chance of X-class solar flares on Feb. 5th.. 
Quelle: Spaceweather

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Update: 25.02.2014 

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It's Baaack! Sunspot Returns With Year's Biggest Blast

The X4.9-class flare burst forth just as active region 1990 returned to the sun's Earth-facing side, at about 7:50 p.m. ET Monday. It set off a strong radio blackout, according to the National Oceanic and Atmospheric Administration's Space Weather Prediction Center. You'd have to go back to 2012 to find a bigger flare on the X-scale.

 

Intense flares like this one can unleash outbursts of electrically charged particles, known as coronal mass ejections, which have been known to interfere with power grids and satellite operations.

The good news is that this flare was so off-center that any outburst shouldn't come anywhere close to hitting Earth. But stay tuned: "This region will continue to rotate into a better position to affect Earth over the next week or so," the Space Weather Prediction Center says.

The sun recently hit the peak of its 11-year activity cycle, and AR1990 demonstrates just how active things can get. It has already circled the sun twice (first as AR1944, then as AR1967) and has grown wider than the planet Jupiter. To learn more about this monster sunspot, check out Phil Plait's Bad Astronomy blog posting — and keep an eye onSpaceWeather.com as well.

Quelle: NBC

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