Solar activity - page 25

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Spectacular M1.7 solar flare at northeastern limb

A moderate solar flare reaching M1.7 took place at 17:45 UTC on April 16th. The eruption was centered around a returning region near the northeast limb. It was  one of the most visually-spectacular explosions in years according to SpaceWeather.com. Generated CME was

April 16, 2012

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A pair of CMEs on the farside

A pair of Coronal Mass Ejections are now visible in the latest STEREO Ahead COR2 images. The source of the first CME was located on the farside of the Sun. The second plasma cloud was the result of a filament liftoff near Sunspot 1450. The plasma cloud appears to be

April 06, 2012

AR1429 on march 30 2012

Active region (AR 1429) returned but not nearly the behemoth it was four weeks ago

The active region (AR 1429), the source of many strong flares and geomagnetic storms in the beginning of March 2012, has completed its journey around the Sun and is peaking over the Eastern limb of the Sun. But it is not nearly the behemoth it was four weeks ago.The

March 30, 2012

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Return of Sunspot 1429 only day ahead - Still very active on farside

Return of the Sunspot 1429 to Earth side is due in evening hours of March 28th by UTC, meaning further increase of an M-class event.Sunspot 1429 produced a number of significant and strong solar flares during mid March and is still very active. On March 26th

March 27, 2012

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Big Sunspot 1429 still erupting, Sunspots 1445 and 1444 pose a new threat

In morning of March 24, a near M-Class flare took place around Sunspot 1445 at around 08:50-09:00 UTC. There was a gap in data on the GOES X-Ray Flux graph, however it was picked up on the EVE Diode X-Ray signal. Comparing it to yesterday's M1.0, it looks like this

March 25, 2012

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Returning Sunspot 1431 produced moderate M1 solar flare

Old Sunspot 1431 is now rotating back into view off the southeast limb and is also producing solar flares. So far this afternoon it produced a minor C6.5 flare, followed by a moderate M1.0 event at 19:40 UTC. Various small sunspots did form including regions 1441, 1442

March 23, 2012

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Sunspot 1429 blasted another CME while transiting the farside of the Sun

Old Sunspot 1429 continues to be active while transiting the farside of the Sun. This morning (March 21, 2012), AR1429 produced a solar flare which resulted in a bright Coronal Mass Ejection (CME). SOHO photographed the cloud expanding at 1550 km/s (3.5 million

March 21, 2012

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Farside eruption on Sun's northwestern limb

Old sunspot AR1429 is still very active as it transits the far side of the sun. During the early hours of March 18th it produced a spectacular solar flare, blasted away from northwestern limb. Earth will not be affected by the CME cloud.Joint USAF/NOAA Report of

March 19, 2012

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Sunspot 1434 unleashed M1.3 solar flare

Sunspot 1434 located in the southern hemisphere, produced a rapid M1.3 Solar Flare at 20:39 UTC on March 17, 2012. A Type II Sweep Frequency Event with a velocity of 1140 km/s was detected as well. Analysis of the M1.3 flare is ongoing to determine if it was

March 18, 2012

listen to solar storm activity orig 2012 03 13

What does a solar storm sound like?

To get an idea what does a solar storm sound like, a University of Michigan researcher has created a "sonification" of measurements from two spacecraft during the most recent storm. The researcher who created it is Robert Alexander, a University of Michigan de

March 17, 2012

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Rising activity on Sunspot 1432 - Two moderate M-Class flares (March 14/15, 2012)

A moderate M2.8 Solar Flare peaked at 15:21 on March 14, UTC, and was centered around Sunspot 1432 located towards the middle of the visible solar disk. Slow moving CME plasma cloud is seen in the latest STEREO Behind COR images and may be partially headed this

March 15, 2012

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The Sun heading towards its Solar Maximum - Retrospective of events (January 1, 2012 - March 13, 2012)

Solar maximum or solar max is the period of greatest solar activity in the solar cycle of the sun when large numbers of sunspots appear.This is the retrospective of events from January 1, 2012 - March 13, 2012.Video by: Zeljko MihajlovicA solar maximum is the

March 15, 2012

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Strong solar flare reaching M7.9 peaked on March 13 2012

Sunspot 1429 unleashed another M-class solar flare around 17:41 UTC. A strong flare reaching M7.9 produced an R2 Radio Blackout on the sunlit side of the Earth. Type II Radio Emission with a velocity of 1366 km/s was detected. Type II emissions occur in

March 13, 2012

March 12 2012 prominence eruption

Prominence eruption and CME impact - March 12, 2012

A spectacular Filament Eruption (Prominence) ripped off the lower southeast quadrant of the Sun today and large Coronal Mass Ejection followed but is not heading for the earth. Video by: Solarwatcher.netFilaments are large regions that contain very dense, cool

March 12, 2012

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Sunspot 1429 unleashed M8.4 solar flare on March 10 peaking at 17:44 UTC

Sunspot 1429 unleashed another strong M class solar flare today. Currently measured at M8.4 solar flare peaked at 17:44 UTC. A bright Coronal Mass Ejection (CME) was produced. Further analysis will be done as imagery becomes available, however initial analysis

March 10, 2012

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M6.3 solar flare, geomagnetic storm still in progress

Sunspot 1429  just produced a strong M6.3 Solar Flare. AR 1429 is now located in the center of the visible solar disk so this solar flare and its CME is heading straight toward Earth. The Bz Component of the Interplanetary Magnetic Field (IMF) is pointing south and

March 09, 2012

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Incoming CME forecasted to pass ACE early Thursday morning (UTC) - proton levels showing sudden increase - Impact at 11:05 UTC

The Solar Wind Speed data from ACE is still unavailable, however as of 7:20 UTC , the CELIAS/MTOF Proton Monitor onboard the SOHO Spacecraft indicates a current SWS of 470 km/s. The Proton Levels are now showing a sudden increase at 08:10 UTC. This is sometimes known

March 08, 2012