Solar activity - page 3

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Cosmic radiation intensifying as we enter another Solar Minimum

An increased activity of cosmic rays has been observed around the Arctic Circle by the neutron monitors during the last year. The same trend was also noted in an independent measurement project carried out by the Spaceweather.com and the students of Earth to Sky...

January 28, 2016

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Prolonged CME effects spark G1 Minor geomagnetic storm

Prolonged effects of a partial-halo CME impact, produced by the filament eruption just of center disk late on January 14, 2016, is causing a G1 Minor geomagnetic storm on January 20, 2016. The CME reached our planet just before 21:00 UTC on January 18. Geomagnetic...

January 20, 2016

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Long duration M2.3 flare erupts causing S1 Minor solar radiation storm

A long duration solar flare measuring M2.3 at its peak time erupted from departing Region 2473 at 00:11 UTC on January 2, 2016. The event started at 23:10 UTC on January 1 and ended at 01:01 UTC on January 2. A Type II (estimated velocity 1019 km/s) and a Type IV...

January 02, 2016

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Long duration M1.8 solar flare produces a full halo, Earth-directed CME

A long duration solar flare measuring M1.8 at its peak time erupted from central Region 2473 at 12:45 UTC on December 28, 2015. The event started at 11:20 and ended at 14:09 UTC. The flare produced a full halo CME heading directly toward Earth. A type IV radio sweep...

December 28, 2015

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Strong M4.7 solar flare erupts from Region 2473

A moderately strong solar flare measuring M4.7 at its peak erupted from Region 2473 at 00:40 UTC on December 23, 2015. The event started at 00:23 and ended at 00:52 UTC. A Type II radio sweep with estimated velocity of 1318 km/s as well as a Type IV radio sweep...

December 23, 2015

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M-class solar flares erupting behind the Sun's northeast limb

An active region currently positioned behind the northeast limb erupted with two M-class solar flares by 10:19 UTC on December 21, 2015. The first event started at 00:52, peaked at 01:03 as M2.8 and ended at 01:11 UTC. The second event started at 10:09, peaked at...

December 21, 2015

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Large filament erupts on the southeast quadrant of the Sun

A large filament erupted on the southeast quadrant of the Sun during the early morning UTC hours of November 22, 2015. The eruption began at approximately 07:30 UTC and launched a coronal mass ejection (CME) into space. Although LASCO coronagraph imagery is still...

November 22, 2015

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Strong M3.9 solar flare erupts from Region 2449 producing a bright CME

A strong solar flare measuring M3.9 at its peak erupted from Region 2449 at 13:12 UTC on November 9, 2015. The event started at 12:49 and ended at 13:28 UTC. A bright Coronal Mass Ejection (CME) was produced. The event was associated with a Type II (estimated...

November 09, 2015

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The Sweden Case: Airplanes disappear from radars due to "solar storm"

Swedish media is reporting air traffic problems due to "solar storm" interfering with air traffic control radar systems during the afternoon of November 4, 2015. It is unclear, however, whether they meant the Solar Radiation Storm or Geomagnetic Storm, two...

November 05, 2015

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Long duration M3.7 flare erupts from Sun's central region, CME to impact Earth on November 7

A long duration solar flare measuring M3.7 at its peak erupted from geoeffective Region 2443 at 13:52 UTC on November 4, 2015. The event started at 13:31 and ended at 14:13 UTC. Radio signatures suggest a Coronal Mass Ejection (CME) was produced. The event was...

November 04, 2015

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Impulsive solar flares measuring M1.9 and M2.5 erupt near the west limb

A moderately strong solar flare measuring M1.9 erupted from Region 2445 at 03:26 UTC on November 4, 2015. The event started at 03:20, and ended at 03:29 UTC. A Type II Radio Emission with peak velocity of 790 km/s was associated with the event. Type II emissions...

November 04, 2015

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Multiple Coronal Mass Ejections (CMEs) erupted from western limb, impacts expected

After four days of increased solar activity, multiple Coronal Mass Ejections (CMEs) were finally observed as a part of an overarching set of coronal disruptions from the vicinity of Region 2420 and stretching southward towards Region 2422, and towards the western...

October 01, 2015

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Increased solar activity continues with multiple M-class flares on September 29

Solar activity started increasing on September 27 with M1.9 flare from geoeffective Region 2422 and continued on September 28 with several impulsive flares from Region 2422 (M7.6) and 2423 (M3.6).During the early morning hours of September 29th (by 06:43 UTC) those two

September 29, 2015

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Impulsive M7.6 solar flare erupts from Region 2422

An impulsive solar flare measuring M7.6 erupted at 14:58 UTC on September 28, 2015 from geoeffective Active Region 2422. The event started at 14:53, and ended at 15:03 UTC. There were no radio signatures that would suggest a Coronal Mass Ejection (CME) was produced duri

September 28, 2015

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Impulsive M3.6 solar flare erupts from Region 2423

An impulsive solar flare measuring M3.6 at its peak time erupted at 03:55 UTC on September 28, 2015 from Active Region 2423 located near the west limb. The event started at 03:45 and ended at 03:59 UTC. Impulsive solar flares usually don't produce Coronal Mass Eject

September 28, 2015

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M1.9 solar flare erupts from Sun's central region 2422

Active Region 2422, located almost at the center of the solar disk, erupted with M1.9 solar flare at 10:40 UTC on September 27, 2015. The event started at 10:20 and ended at 10:46 UTC.This region has 'Beta-Gamma-Delta' magnetic configuration and is capable of pr

September 27, 2015

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Long duration M2.1 solar flare erupts from Region 2415, CME produced

A long duration solar flare measuring M2.1 at its peak time erupted from Region 2415 at 18:03 UTC on September 20, 2015. The event started at 17:32 and ended at 18:29 UTC.A Type II Radio Emission with estimated velocity of 1358 km/s was produced by this event. Type II

September 20, 2015