4 X-CLASS SOLAR FLARES IN JUST OVER 72HR GRAB SCIENCE HEADLINES!
Photo By: NASA Solar Dynamics Observatory (SDO) of the 1st of the 4 solar flares. Check below for a multitude of links pertaining to solar activity.
Within 72 hours a very interesting event has taken place on the Sun. Although it hasn’t happened all year long the Sun has, in just over 72 hours unleashed four X-Class Solar Flares (the most powerful type) and that has astronomers raising their eyebrows as to what’s next. Has Solar Maximum 24 finally woken up…..sure hope so!
The following is an excerpt from NASA’s news page in regards to the situation though the fourth one has just happened in the past few hours so while we are waiting for the fourth update I will create my own from data I have collected in last night. The THIRD UPDATE on down is an excerpt from NASA’s news page about the event.
Tentative Fourth Update: May 15, 0400 EDT. (My update)
A fourth x-class solar flare has occurred on the sun in a span of 72 hours. The flare, which peaked at 1848 EDT and reached a level of X1.2, like the previous 3 was associated with a Coronal Mass Ejection. Though a glancing blow from the material is possible, none of these flares have been aimed directly at Earth. In my opinion, if there have been four in 72 hours and none all year prior it’s a safe bet that she’s not done yet.
Third Update: May 14, 9 a.m. EDT
The sun emitted a third significant solar flare in under 24 hours, peaking at 9:11 p.m. EDT on May 13, 2013. This flare is classified as an X3.2 flare. This is the strongest X-class flare of 2013 so far, surpassing in strength the two X-class flares that occurred earlier in the 24-hour period.
The flare was also associated with a coronal mass ejection, or CME. The CME began at 9:30 p.m. EDT and was not Earth-directed. Experimental NASA research models show that the CME left the sun at approximately 1,400 miles per second, which is particularly fast for a CME. The models suggest that it will catch up to the two CMEs associated with the earlier flares. The merged cloud of solar material will pass by the Spitzer spacecraft and may give a glancing blow to the STEREO-B and Epoxi spacecraft. Their mission operators have been notified. If warranted, operators can put spacecraft into safe mode to protect the instruments from solar material.
Second Update: May 13, 3:30 p.m. EDT
The X2.8-class flare was also associated with a coronal mass ejection, or CME, another solar phenomenon that can send billions of tons of solar particles into space, which can potentially affect electronic systems in satellites and on the ground. The CME was not Earth-directed, but could pass NASA’s STEREO-B, Messenger and Spitzer spacecraft. Their mission operators have been notified. Experimental NASA research models show that the CME left the sun at 1,200 miles per second beginning at 12:18 p.m. EDT. If warranted, operators can put spacecraft into safe mode to protect the instruments from solar material.
First Update: May 13, 1:30 p.m. EDT
On May 13, 2013, the sun emitted an X2.8-class flare, peaking at 12:05 p.m. EDT. This is the strongest X-class flare of 2013 so far, surpassing in strength the X1.7-class flare that occurred 14 hours earlier. It is the 16th X-class flare of the current solar cycle and the third-largest flare of that cycle. The second-strongest was an X5.4 event on March 7, 2012. The strongest was an X6.9 on Aug. 9, 2011.
Original Story: May 13
On May 12, 2013, the sun emitted a significant solar flare, peaking at 10 p.m. EDT. This flare is classified as an X1.7, making it the first X-class flare of 2013. The flare was also associated with another solar phenomenon, called a coronal mass ejection (CME) that can send solar material out into space. This CME was not Earth-directed.
Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel. This disrupts the radio signals for as long as the flare is ongoing – the radio blackout associated with this flare has since subsided.
“X-class” denotes the most intense flares, while the number provides more information about its strength. An X2 is twice as intense as an X1, an X3 is three times as intense, etc.
This flare erupted from an active region just out of sight over the left side of the sun, a region that will soon rotate into view. This region has produced two smaller M-class flares as well.
The May 12 flare was also associated with a coronal mass ejection, another solar phenomenon that can send billions of tons of solar particles into space, which can affect electronic systems in satellites and on the ground. Experimental NASA research models show that the CME left the sun at 745 miles per second and is not Earth-directed, however its flank may pass by the STEREO-B and Spitzer spacecraft, and their mission operators have been notified. If warranted, operators can put spacecraft into safe mode to protect the instruments from solar material. There is some particle radiation associated with this event, which is what can concern operators of interplanetary spacecraft since the particles can trip computer electronics on board.
Increased numbers of flares are quite common at the moment because the sun’s normal 11-year activity cycle is ramping up toward solar maximum, which is expected in 2013. Humans have tracked the solar cycle continuously since it was discovered in 1843, and it is normal for there to be many flares a day during the sun’s peak activity. The first X-class flare of the current solar cycle occurred on Feb. 15, 2011, and there have been another 15 X-class flares since, including this one. The largest X-class flare in this cycle was an X6.9 on Aug. 9, 2011.
NASA news page in regards to this event: http://www.nasa.gov/mission_pages/sunearth/news/News051213-flare.html
NASA Solar Flares Page: http://www.nasa.gov/mission_pages/sunearth/news/flare-impacts.html
NOAA Space Weather Prediction Center: http://www.swpc.noaa.gov/
NASA Solar and Heliospheric Observatory (SOHO): http://sohowww.nascom.nasa.gov/home.html
NASA Solar Dynamics Observatory (SDO): http://sdo.gsfc.nasa.gov/
NOAA Current Solar Data: http://www.n3kl.org/sun/noaa.html
Space Weather: http://www.spaceweather.com/
Solar Harm Website: http://www.solarham.net/