Sun Unleashes Biggest Flare of the Current Cycle

[/caption]

On February 13, 2011, sunspot 1158 let loose the strongest solar flare of the current solar cycle, a blast of radiation across the electromagnetic spectrum, from radio waves to x-rays and gamma-rays. NASA’s Solar Dynamics Observatory recorded an intense flash of extreme ultraviolet radiation, as seen above, and located in approximately the middle of the Sun’s disk in the image below. The eruption also produced a loud blast of radio waves, and coronagraph data from STEREO-A and SOHO agree that the explosion produced a fast but not particularly bright coronal mass ejection. Spaceweather.com predicts a CME cloud will likely hit Earth’s magnetic field on or about Feb. 15th, and high-latitude sky watchers should be alert for auroras.

A M6.6-category flare on Feb. 13. Credit: NASA/SDO

This was an M6.6-category flare. Find out more about the classification of solar flares at this link at Spaceweather.com

Another view from SDO of the flare. Credit: NASA/SDO
A look at sunspot 1158 as of Feb. 14, 2011. This is the source of the recent activity on the Sun. Credit: NASA/SDO

Jason Major from Lights in the Dark created the video below of magnetic activity around a sunspot 1158, from data region from SDO spacecraft, during February 12-13, 2011.

Keep tabs on the Sun by visiting the SDO website, which shows the current Sun in several different wavelengths.

Sources: SDO, Spaceweather.com

Nancy Atkinson

Nancy has been with Universe Today since 2004. She is the author of a new book on the Apollo program, "Eight Years to the Moon," which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible. Her first book, "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond.

Recent Posts

Is the Underground Lake on Mars Just Volcanic Rock?

Is Mars home to an underwater lake? Different researchers are reaching different conclusions. Some say…

14 hours ago

What is Einstein’s Theory of Relativity?

More than a century after he first proposed it, Einstein's Theory of Relativity is still…

15 hours ago

The Scientific Debate Rages on: Is there Water Under Mars’ South Pole?

There's no surface water on Mars now, but there was a long time ago. If…

19 hours ago

We Already Have the Technology to Save Earth From a “Don’t Look Up” Comet or Asteroid

What if a 10 km (6.5 mile)-wide asteroid was on a bee-line towards Earth, with…

20 hours ago

NASA is Already Designing Hardware for a Mars Sample Return Mission

Testing is key to the success of any space mission, and the more complex the…

23 hours ago

Unistellar’s Plans for Science and Astronomy in 2022

Unistellar’s eVscope has proven its ability to do serious astronomy, with more to come in…

2 days ago