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Posts Tagged ‘X-class solar flares’

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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Sun fires warning shot across the bow! Earth directed X Flare

November 6, 2013 Comments off

Fiercest Solar Flare of 2012 Yet: X Class – January 28/29

January 30, 2012 1 comment

onlykent.com

In the last week or so we’ve been reporting on solar flares that have been released and solar storms impacting earth, with more intense northern lights displays and concerns that radio communications and satellites could be disrupted. We can now tell you that yesterday the largest solar flare yet of 2012 occurred, this time an Read more…

MAJOR SOLAR FLARE: August 9th, 2011.

August 9, 2011 Comments off

theweatherspace

This morning at 0805 UT, sunspot 1263 produced a powerful X7-class solar flare. NASA’s Solar Dynamics Observatory captured the explosion’s extreme ultraviolet flash.

The solar flare was not Earth directed but a minor proton storm is in progress around our planet, which could affect satellites.

Radiation from the flare also briefly disrupted communications on some VLF and HF radio frequencies.

We may get a glancing blow from the flare. Read more…

Solar flaring warning issued

May 31, 2011 Comments off

news24

article image

A solar wind stream flowing from the indicated coronal hole could reach Earth on or about June 4th. . Credit: SDO/AIA.

Cape Town – The Space Weather Centre has warned that the sun is undergoing some instability, which has implications for electronic communications.

“There is a very active area on the sun as rotated onto the invisible solar disc. This active area has got the potential for more flaring for the next five to six days,” space weather forecaster Kobus Olckers of the Space Weather Warning Centre at the Hermanus Magnetic Observatory told News24.

He said that communications and electronic systems might be affected.

“The internet could be a little slower for the next week or so and especially long distance communications.”

Polar routes

Scientists recognize three major Read more…

Solar Storms Season Heating Up

April 21, 2011 Comments off
Sunspots — cooler regions fraught with intense magnetic fields — now regularly dot the surface of the sun, and the star has unleashed several powerful flares in recent months, including...

Sunspots — cooler regions fraught with intense magnetic fields — now regularly dot the surface of the sun, and the star has unleashed several powerful flares in recent months, including a Feb. 14 blast that was the most powerful outburst in more than four years. All signs suggest that the sun has shaken itself out of its slumber, researchers say. After three years in a deep solar sleep of historic proportions, the sun is starting to wake up.

In 2008, the sun plunged into its least active state in nearly a century. Sunspots all but vanished, solar flares subsided and the star was eerily quiet. Quiet spells on the sun are nothing new. They come along every 11 years or so, as part of the sun’s natural activity cycle. But this latest solar minimum lasted longer than usual, prompting some researchers to wonder if it would ever end.

This year has started off with a bang, as sunspots are crackling with activity. Earth-orbiting satellites have detected Read more…