Articles tagged "c-class"

Long duration C1 solar flare erupted with Earth directed CME

A long duration C1 solar flare erupted on October 6, 2013 at 14:24 UTC. Coronal Mass Ejection associated with this event is Earth directed. Plasma cloud is forecast to sweep past our planet sometime on October 9 resulting in minor increase in geomagnetic

October 07, 2013

Prominence eruption and long duration solar flare with Full-Halo CME

A long duration C-Class solar flare reaching C8.3 erupted on August 30, 2013 peaking at 02:46 UTC. The event started at 02:04 UTC and ended at 04:06 UTC. Associated was Type II and Type IV radio emissions. Type IV emissions occur in association with major

August 30, 2013

An uptick in solar activity on southern hemisphere of the Sun

Southern hemisphere of the Sun is showing an uptick in activity. Beta classified Region 1817 produced an C8.4 solar flare peaking at 21:55 UTC on Sunday, August 11, 2013. This was the largest Earth facing X-ray event since July 8. NOAA SWPC

August 12, 2013

C9.5 solar flare erupted from Sunspot 1762, geomagnetic activity subsided

Nearly M-class solar flare was released from Active Region 1762 in the southern hemisphere. Strong C9.5 flare erupted at 07:25 UTC on June 3, 2013. The event started at 07:03, peaked at 07:25 UTC and ended at 07:42 UTC. GOES X-Ray flux shows C9.5 solar flare on

June 03, 2013

Large prominence eruption and strong C-class solar flare

Strong solar flare erupted on May 9, 2013 at 22:52 with peak at 23:15 UTC as C9.1 flare, just below M-class threshold. The event was centered around old returning Sunspot 1726. It will be on the visible solar disk in the next 24 hours when it will be designated as

May 10, 2013

Long duration C2 solar flare erupted from Region 1690

A long duration C-class solar flare erupted from Region 1690 on March 12, 2013. The event started at 10:17, peaked ad 11:06 as C2.0 flare and ended at 12:25 UTC. A Coronal Mass Ejection (CME) was produced. Region 1690 still has Alpha magnetic configuration, but its

March 12, 2013

Fast-growing Sunspot 1678 poses threat for M-class and X-class solar flares

Sun erupted slow-moving Coronal Mass Ejection (CME) on February 19, 2013. Goddard Space Flight Center reported that the bulk of the plasma cloud was directed to the north of Earth. Still, we can expect a glancing blow around February 22, 2013. Minor to moderate

February 20, 2013

Sunspot 1667 generated strong C8.7 solar flare and possible Earth-directed CME

A solar flare registered as C8.7 was detected at 00:21 UTC on February 6, 2013. The source of the flare was decaying Active Region 1667. According to images from NASA's STEREO-B spacecraft, the associated CME appears to be heading in the Earth direction, with expected

February 06, 2013

Large AR 1654 rotating into direct Earth view, C8 solar flare generated

Sunspot 1654 produced a long duration C8.0 solar flare at 17:46 UTC on January 10, 2013. Besides C8 event, solar activity remained at low levels. There are currently 9 numbered sunspots with 1652 and 1654 as the largest active regions. Region 1652 is classified as a

January 10, 2013

X-Class: A Guide to Solar Flares

Solar flares happen when the powerful magnetic fields in and around the Sun reconnect. They're usually associated with active regions, often seen as sun spots, where the magnetic fields are strongest. Flares are classified according to their strength. The smallest ones

November 21, 2012

Large prominence eruption and C8.4 solar flare - November 16, 2012

At 07:51 UTC, November 16, 2012 a C1.4 solar flare peaked from Active Region 1613. About the same time, a large solar prominence was observed off the Sun's eastern limb. Prominence produced Coronal Mass Ejection (CME), however it does not appear to be Earth directed.

November 16, 2012

Long duration C3.7 solar flare erupted with Earth directed CME

A long duration C3 class solar flare erupted from Active Region 11577 peaking at 23:55 UTC September 27, 2012. The flare has produced a Coronal Mass Ejection (CME) which is expected to impact the Earth's magnetic field sometime late September 29, 2012. Proton levels

September 28, 2012

Sun released long-duration C3 solar flare and CME

Solar activity was low for the last several days. Sunspot Region 1543 produced a long-duration C3 flare at 13:16 UTC on August 16. This flare was accompanied by Type II (704 km/s) and Type IV radio emissions and a coronal mass ejection (CME). Type II emissions occur

August 17, 2012

Long duration C-class event generated minor S1 radiation storm on Earth and hurled CME toward Mars

The proton levels reached S1 Minor Radiation Storm threshold today. The Solar X-Rays also detected a long duration C-Class event during the early hours of Sunday morning and this generated a Coronal Mass Ejection (CME). It appears that the plasma cloud was directed

May 27, 2012

A long-duration C3 solar flare at the Sun's farside

NASA's STEREO-Behind spacecraft observed a significant eruption on the farside of the sun today. Although the blast was eclipsed by the edge of the solar disk, it nevertheless produced a long-duration  C3 solar flare detectable from Earth. The blast site is not far

January 12, 2012

Solar activity heightens up: 3 M-class flares and 11 C-class flares in past two days

An M-Class flare with a double peak took place this afternoon at 20:30 UTC around active Sunspot 1387. The flare measured M2.3 and was captured by SDO in the image below. A long duration C5.7 Solar Flare was detected around Sunspot 1384 this morning (Dec 26) and

December 26, 2011

Sunspot 1363 subsiding, solar activity remains low

After three days of meteoric growth, sunspot AR1363 has reversed course and is beginning to decay. As its magnetic field relaxes, the active region poses a subsiding threat for strong flares. It's not dead yet, though, as this snapshot shows: There is still a slim

December 06, 2011

Fast growing sunspot 1199

New sunspot 1199 is growing rapidly in the sun's northern hemisphere, ballooning in area by more than a factor of five during the last 24 hours. If the expansion continues apace, this active region could soon pose a threat for flares. Stay tuned. (SpaceWeather)

April 27, 2011

A huge filament of magnetism and hot plasma blasted off the sun's southwestern limb

A huge filament of magnetism and hot plasma blasted off the sun's southwestern limb on March 19th around 1200 UT. The eruption was not Earth-directed, but it did attract plenty of attention on our planet. Many amateur astronomers in Europe witnessed the blast and said

March 20, 2011