X-CLASS SOLAR FLARE: Earth-orbiting satellites have just detected an X2.2-class solar flare (April 20th @ 0357 UT). Remarkably, it came from a farside sunspot. The source is AR2992, which yesterday rotated over the southwestern limb of the sun. NASA's Solar Dynamics Observatory recorded the blast:
Because the sunspot was eclipsed by the edge of the sun, the actual flare was certainly stronger than its nominal rating of X2.2.
Radiation from the flare caused a shortwave radio blackout over southeast Asia: blackout map. Marianers and ham radio operators in the area may have noticed unusual propagation effects at frequencies below 30 MHz.
Stay tuned for updates. Solar flare alerts: SMS Text
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X2.2-class solar flare (April 20th @ 0357 UT)
Radiation from the flare caused a shortwave radio blackout over southeast Asia: blackout map. Marianers and ham radio operators in the area may have noticed unusual propagation effects at frequencies below 30 MHz.
Stay tuned for updates. Solar flare alerts: SMS Text
Posted under Fair use
X2.2-class solar flare (April 20th @ 0357 UT)
