Yesterday’s Mammoth Solar Flare Is The Biggest Of 2014 So Far

She’s a rainbow! You can see the first moments of a huge flare belching off the sun in the picture above. The so-called X-class flare erupted a few hours ago (at 7:25 p.m. EST Feb. 24, or 12:25 a.m. UTC Feb. 25) and was captured by several spacecraft. If you have a pictures of the sun yourself to share, feel free to post them in the Universe Today Flickr pool.

NASA’s Solar Dynamics Observatory saw the flare growing in at least six different wavelengths of light, which are visible in the image above. This is classified this as an X4.9-class flare, which shows that it is pretty strong. X-flares are the most powerful kind that the sun emits, and each X number is supposed to be twice as intense as the previous one (so an X-2 flare is twice as powerful as X-1, for example).

SpaceWeather.com says this is the most powerful flare of the year so far, emitted from sunspot AR1967 (or more properly speaking, AR1990; sunspots are renamed if they survive a full rotation of the sun, as this one has done twice already!) While solar flares can lead to auroras, in this case it appears the blast was pointed in the wrong direction, the site added.

“Although this flare is impressive, its effects are mitigated by the location of the blast site–near the sun’s southeastern limb, and not facing Earth,” SpaceWeather stated. “Indeed, a bright coronal mass ejection (CME) which raced away from the sun shortly after the flare appears set to miss our planet.”

This image from the Solar and Heliospheric Observatory illustrates increased solar activity between Feb. 18-20, 2014. Credit: ESA/NASA/SOHO/GSFC

The sun goes through an 11-year cycle of sunspot and solar activity, which is supposed to be at its peak right now. This particular peak has been very muted, but lately things have been picking up. The European Space Agency noted that between Feb. 18 and 20, the sun sent out six CMEs in three days, with most of them moving in different directions.

“This level of activity is consistent with what we might expect as the Sun is near its maximum period of activity in the 11-year solar cycle,” ESA stated.

You can see the sun changing on this SDO page, showing the latest views of the sun in different wavelengths. And for more information on sunspots, check out this NASA page explaining a little more about how they work.

Elizabeth Howell

Elizabeth Howell is the senior writer at Universe Today. She also works for Space.com, Space Exploration Network, the NASA Lunar Science Institute, NASA Astrobiology Magazine and LiveScience, among others. Career highlights include watching three shuttle launches, and going on a two-week simulated Mars expedition in rural Utah. You can follow her on Twitter @howellspace or contact her at her website.

View Comments

  • Recommended reading
    "The Life and Death of Stars"
    Kenneth Lang
    available on amazon
    The sun, solar flares. stars and their operation and life cycles

Recent Posts

Geysers on Europa might come from pockets of water under the ice

Observations have already confirmed the existence of a sub-surface ocean on Europa, and there has…

11 hours ago

The Moon has Resources, but Not Enough to Go Around

A new study led by the Harvard-Smithsonian Center for Astrophysics explains how the Moon may…

18 hours ago

Astronomers See a Newly Forming Planetary Disk That’s Continuing to Feed On Material from its Nebula

Over the last few years, astronomers have observed distant solar systems in their early stages…

18 hours ago

Weekly Space Hangout: November 25, 2020, Dr. Olivier Witasse, Project Scientist, the JUICE Mission

https://youtu.be/RpRKnjL197I This week we are aired Fraser's pre-recorded interview with Dr. Olivier Witasse, Project Scientist…

21 hours ago

RocketLab Recovers a First-Stage Booster for the First Time: “Return to Sender”

In recent years, one of the most impressive developments for space exploration has been the…

2 days ago

A New Artist’s Illustration of the Extremely Large Telescope. So Many Lasers

Everyone loves lasers. And the only thing better than a bunch of lasers is a…

2 days ago