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Posts Tagged ‘CME’

Earth-directed solar X-flare March 11

March 12, 2015 Comments off

earthsky.org

The sun has been relatively quiet, and this is the first X-flare of 2015. It caused a brief radio blackout at some frequencies. Possible aurora alert ahead.

The first X-flare of 2015 from NASA's Solar Dynamics Observatory

A strong Earth-directed X-flare erupted from a large active region on the sun – AR2297 – earlier today. The flare happened on March 11, 2015 at 16:22 UTC (11:22 a.m. CDT). It measured X2 on the Richter Scale of Flares. Spaceweather.com said:

Extreme ultraviolet radiation from the explosion ionized the upper layers of Earth’s atmosphere, causing HF radio fade-outs and other propagation effects on the dayside of our planet. In the red zone of this map, ham radio operators and mariners may have noticed brief but complete blackout conditions at frequencies below 10 MHz.

The disturbance has since subsided.

Spaceweather.com also said that natural radio emissions from the sun indicate a possible coronal mass ejection – CME – emerging from the blast site at speeds exceeding

Read more…

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SOLAR WATCH: Monster Sunspot 1654 Aims Our Way – Earthquake Window Opening As Coronal Mass Ejections To Hit Earth On Thursday!

January 16, 2013 1 comment

thecelestialconvergence.blogspot.com

January 15, 2013 – THE SUN – Simulations of a coronal mass ejection (CME) show the impact arrival of such on January 17th. This coincides with Senior Meteorologist Kevin Martin’s window for an earthquake in North America. The Sun is acting up again, with large sunspots moving across the solar disk. The sunspots are powerful enough for x-class solar flares, the most powerful of them all.

Image: The Weather Space Network.

While a 10% chance is now given for such a flare, one is already on the way. This should impact on January 17th and Read more…

Scientists Expect A Massive Solar Event To Hit By Next Year

January 10, 2013 Comments off

earth-issues.com

It was in January 1994 that two Canadian telecommunications satellites blanked out during a major sunburst while in geosynchronous orbit and communications were disrupted nationwide.

Aurora during a geomagnetic storm that was mos...

While recovery occurred after only a few hours on the first satellite, it took some six months and more than $70 million to recover the second satellite.

Then in January 2005, some 26 United Airlines flights had to be diverted during a space weather storm to non-polar routes – to avoid the prospect of high frequency radio blackouts.

Added were landings and takeoffs, flight time and other factors that elevated fuel consumption and costs. Each route change ended up costing more than $100,000.

Then in February 2011, there was a sun eruption experts described as the largest solar flare in four years. It caused interference in radio communications and global positioning system signals for aircraft traveling long-distances.

While it was a modest outburst, experts say it signaled the beginning of an upcoming Read more…

Mysterious Solar Phenomenon We May Have To Worry About

September 23, 2012 1 comment

messagetoeagle

MessageToEagle.com – Coronal cavities are voids in coronal emission often observed above high latitude filament channels.

Sometimes, these cavities have areas of bright X-ray emission in their centers.

Now, NASA scientists focus on this mysterious phenomenon because it seems to be strongly related to dangerous coronal mass ejections (CMEs).
And CMEs, scientists have to worry about.


Click on image to enlargeThe faint oval hovering above the upper left limb of the sun in this picture is known as a coronal cavity. NASA’s Solar and Read more…

Huge SUNSPOT 1476 poses a threat(Video)

May 8, 2012 Comments off

spaceweather.com

BIG SUNSPOT: One of the largest sunspot groups in years rotated over the sun’s northeastern limb this weekend. With a least four dark cores larger than Earth, AR1476 sprawls more than 100,000 km from end to end, and makes an easy target for backyard solar telescopes. Amateur astronomer Alan Friedman sends this picture of the behemoth from his backyard in Buffalo, NY: “AR1476 is firecrackler,” says Friedman. Indeed, the active region is crackling with impulsive M-class solar flares. Based on the sunspot’s complex ‘beta-gamma’ magnetic field, NOAA forecasters estimate a 75% chance of Read more…

NASA Scientists Capture Stunning Images of Solar Flares From Sun (Video)

April 17, 2012 1 comment

ibtimes.co.uk

An eruption on April 16, 2012 was captured here by NASA's Solar Dynamics Observatory in the 304 Angstrom wavelength, which is typically colored in red Credit: NASA/SDO/AIA

An eruption on April 16, 2012 was captured here by NASA‘s Solar Dynamics Observatory in the 304 Angstrom wavelength, which is typically colored in red Credit: NASA/SDO/AIA

Nasa’s Solar Dynamics Observatory (SDO) has captured the stunning images of solar flares from the Sun on 16 April.

The flares kicked up a massive amount of intense super-heated solar plasma in an explosion known as coronal mass ejection, or CME. The eruptions blasted off the east limb (left side) of the Sun.

The powerful solar flare occurred at 1:45 p.m. EDT (17:45 GMT) and registered a M1.7 class (medium-sized) on the scale scientists used to measure flare strength, said Nasa.

“A large coronal mass ejection blasts off over the eastern limb of the Sun. Great eruption happening on the Sun now,” Nasa scientists posted a message on twitter.

Coronal mass ejections are associated with solar flares and can also occur independently. Both the solar flares and coronal mass ejections occur as a result of Read more…

Categories: Sun Tags: , , ,

SOLAR WATCH: Sunspot 1429 Returns With Massive CME – 45% Chance Of Geomagnetic Storms!

March 28, 2012 1 comment

ANOTHER CME FROM SUNSPOT AR1429: Transiting the farside of the sun, never-say-die sunspot AR1429 erupted during the late Read more…

Categories: Solar Cycle 24, Sun Tags: , , ,