mardi 10 juin 2014

NASA's SDO Sees 2 Solar Flares












NASA - Solar Dynamics Observatory (SDO) patch.

June 10, 2014

The sun released a second X-class flare, peaking at 8:52 a.m. EDT on June 10, 2014. This is classified as an X1.5 flare.

SDO Sees Two Solar Flares

Video above: The sun emitted significant solar flares on June 10, 2014, peaking at 7:42 a.m. EDT and 8:52 a.m. EDT. Image Credit: NASA's Goddard Space Flight Center.


Image above:  The second X-class flare of June 10, 2014, appears as a bright flash on the left side of this image from NASA’s Solar Dynamics Observatory. This image shows light in the 193-angstrom wavelength, which is typically colorized in yellow. It was captured at 8:55 a.m EDT, just after the flare peaked. Image Credit: NASA/SDO.

The sun emitted a significant solar flare, peaking at 7:42 a.m. EDT on June 10, 2014. NASA's Solar Dynamics Observatory – which typically observes the entire sun 24 hours a day -- captured images of the flare.


Image above: A solar flare bursts off the left limb of the sun in this image captured by NASA's Solar Dynamics Observatory on June 10, 2014, at 7:41 a.m. EDT. This is classified as an X2.2 flare, shown in a blend of two wavelengths of light: 171 and 131 angstroms, colorized in gold and red, respectively. Image Credit: NASA/SDO/Goddard/Wiessinger.

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.

To see how this event may affect Earth, please visit NOAA's Space Weather Prediction Center at http://spaceweather.gov, the U.S. government's official source for space weather forecasts, alerts, watches and warnings.

This flare is classified as an X2.2 flare. 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.

For more information about Solar Dynamics Observatory (SDO), visit: http://www.nasa.gov/mission_pages/sdo/main/ and http://sdo.gsfc.nasa.gov/

Updates will be provided as needed.

Images (mentioned), Video (mentioned), Text, Credits: NASA's Goddard Space Flight Center / Karen C. Fox.

Cheers, Orbiter.ch