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Post by clone on Aug 2, 2010 22:11:51 GMT -8
Nasa says large CME on Sun headed for Earth: Expected Arrival August 3rd NASA Solar and Heliospheric Observatory (SOHO) also spotted a large coronal mass ejection (CME) The eruption happened around (3:50 am EST), the SDO detected a C3 class solar flare originating from a group of sunspots (called sunspot 1092). The flare itself was not that large, but the filament located about 70,000 miles away erupted at the same time. welcometoafreeworld.blogspot.com/2010/08/nasa-says-large-cme-on-sun-headed-for.html
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Post by clone on Aug 2, 2010 22:13:54 GMT -8
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Post by moabiter on Aug 8, 2010 12:50:14 GMT -8
SOLAR BLAST JUST MISSES EARTH: On August 7th (1825 UT), magnetic fields around sunspot 1093 became unstable and erupted, producing a strong M1-class solar flare. Several amateur astronomers caught the active region in mid-flare, while NASA's Solar Dynamics Observatory recorded an extreme ultraviolet movie of the entire event: Video - The eruption hurled a coronal mass ejection (CME) into space, just missing a direct sun-Earth line. Forecasters expect the cloud to deliver no more than a glancing blow to our planet's magnetic field when it billows by on August 9th or 10th--not be a major space weather event. Future eruptions could turn out differently. Active region 1093 is rotating toward Earth. By the end of this weekend, we'll be in the line of fire if its magnetic fields become unstable again. spaceweather.com/___________________________ Aug. 7, 2010 - AR 1093 was very active today, and it put on a nice show in my solar telescope... www.spaceweather.com/submissions/large_image_popup.php?image_name=michael-buxton-AR1093-7-AUG-2010-1918-UT_1281218413.jpg_____________________________ EXTRA! SOLAR RADIO BURSTS: The flare produced intense radio bursts detectable by ordinary shortwave receivers on Earth. In New Mexico, amateur radio astronomer Thomas Ashcraft picked up strong emissions around 21 MHz. "Listen to some of the sounds than came out of the loudspeakers," he says. "This was a complex flare and very exciting. Yet it is still small stuff compared to what is coming in the future as Solar Cycle 24 intensifies."
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Post by moabiter on Aug 9, 2010 19:14:39 GMT -8
INCOMING CME: The solar eruption of August 7th might affect Earth after all. Newly-arriving data from the Solar and Heliospheric Observatory (SOHO) show a CME heading our way with a significant Earth-directed component. Click on the image to launch a "difference movie" of the expanding cloud: Active sunspots 1092 and 1093 are both large enough to see without the aid of a solar telescope. On August 7th, M. Raşid Tuğral caught them rising over Ankara, Turkey: spaceweather.com/
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Post by moabiter on Sept 9, 2010 10:29:29 GMT -8
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Post by clone on Oct 17, 2010 21:03:16 GMT -8
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Post by clone on Oct 30, 2010 22:13:17 GMT -8
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Post by clone on Nov 8, 2010 19:11:56 GMT -8
M5 SOLAR FLARE: Active sunspot 1121 has unleashed one of the brightest x-ray solar flares in years, an M5.4-class eruption at 15:36 UT on Nov. 6th. Radiation from the flare created a wave of ionization in Earth's upper atmosphere that altered the propagation of low-frequency radio waves. A solar wind stream flowing from the indicated coronal hole could brush past Earth's magnetic field around Nov. 10th. NOAA forecasters estimate a 20% chance of X-class flares from sunspot 1121 during the next 24 hours. spaceweather.com/
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Post by clone on Nov 29, 2010 19:22:28 GMT -8
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Post by clone on Dec 6, 2010 21:32:57 GMT -8
Mega filament snaking around the sun. EPIC BLAST: As predicted, the a "mega-filament" of solar magnetism erupted on Dec. 6th, producing a blast of epic proportions. NASA's Solar Dynamics Observatory recorded the action as the 700,000-km long structure lifted off the stellar surface and--snap!!--hurled itself into space. Click on the arrow to play the movie: Tuesday, Dec. 7, 2010. www.spaceweather.com/
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Post by moabiter on Dec 13, 2010 1:41:51 GMT -8
TRIPLE ERUPTION: Solar activity surged on Sunday, Dec. 12th, when the sun erupted three times in quick succession, hurling a trio of bright coronal mass ejections (CMEs) into space. Coronagraphs onboard the Solar and Heliospheric Observatory recorded the action: A preliminary analysis suggests that none of the CMEs will be geoeffective. The expanding clouds should miss our planet. Are these CMEs related? According to images from NASA's twin STEREO spacecraft and the Solar Dynamics Observatory, the clouds emerged from three distinct blast sites separated by great distances. In each case, a magnetic filament erupted--one near the sun's southeastern limb (CME#1), one near the north pole (CME#2), and one on the far side of the sun (CME#3). Because all three eruptions occurred within a matter of hours, the coronagraph images suggest a single 3-lobed cloud; in fact, they are distinct CMEs. Monday, Dec. 13, 2010 spaceweather.com/
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Post by moabiter on Jan 13, 2011 3:14:10 GMT -8
Sundiving Comet Storm Jan. 12, 2011: The sun has just experienced a storm—not of explosive flares and hot plasma, but of icy comets. "The storm began on Dec 13th and ended on the 22nd," says Karl Battams of the Naval Research Lab in Washington, DC. "During that time, the Solar and Heliospheric Observatory (SOHO) detected 25 comets diving into the sun. It was crazy!" Sundiving comets—a.k.a. "sungrazers"—are nothing new. SOHO typically sees one every few days, plunging inward and disintegrating as solar heat sublimes its volatile ices. "But 25 comets in just ten days, that's unprecedented," says Battams... Battams and Knight think the comet-storm of Dec. 2010 might herald a much bigger sungrazer to come, something people could see with the naked eye, perhaps even during the day. science.nasa.gov/science-news/science-at-nasa/2010/12jan_cometstorm/
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Post by clone on Feb 14, 2011 1:45:53 GMT -8
EARTH-DIRECTED SOLAR FLARE: On Feb. 13th at 1738 UT, sunspot 1158 unleashed the strongest solar flare of the year so far, an M6.6-category blast. NASA's Solar Dynamics Observatory recorded an intense flash of extreme ultraviolet radiation, circled below. spaceweather.com/
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Post by clone on Feb 17, 2011 18:04:30 GMT -8
Earth dodges geomagnetic storm: scientist Thu Feb 17, 1:20 pm ET WASHINGTON (AFP) – A wave of charged plasma particles from a huge solar eruption has glanced off the Earth's northern pole, lighting up auroras and disrupting some radio communications, a NASA scientist said. But the Earth appears to have escaped a widespread geomagnetic storm, with the effects confined to the northern latitudes, possibly reaching down into Norway and Canada. "There can be sporadic outages based on particular small-scale events," said Dean Persnell, project scientist at NASA's Solar Dynamics Observatory at Goddard Space Flight Center. news.yahoo.com/s/afp/20110217/sc_afp/usastronomytelecomnasachina
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Post by clone on Feb 18, 2011 20:49:42 GMT -8
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