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The event occurred in 2012, near the local maximum of sunspots that can be seen in this graph.. At 02:08 UT on 23 July 2012, a large coronal mass ejection (CME) was launched from the Sun. [3] The eruption emanated from solar active region 11520 and coincided with what was at most an X2.5-class solar flare. [4]
Solar flare, a large explosion in the Sun's atmosphere caused by tangling, crossing or reorganizing of magnetic field lines; Coronal mass ejection (CME), a massive burst of plasma from the Sun, sometimes associated with solar flares; Geomagnetic storm, the interaction of the Sun's outburst with Earth's magnetic field
A video clip of an erupting solar prominence, a CME. A prominence is a large, bright, gaseous feature extending outward from the Sun's surface, often in the shape of a loop. Prominences are anchored to the Sun's surface in the photosphere and extend outwards into the corona.
By studying old and dead stars, we can discover what will happen to our sun in the far, far future. And it won't end with a big explosion.
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CMEs typically reach Earth one to five days after leaving the Sun. The strongest deceleration or acceleration occurs close to the Sun, but it can continue even beyond Earth orbit (1 AU), which was observed using measurements at Mars [21] and by the Ulysses spacecraft. [22] ICMEs faster than about 500 km/s (310 mi/s) eventually drive a shock ...
Full coverage: Total solar eclipse photos, videos and reactions from the path of totality. Solar Eclipse 2024: 33 photos that show the rare astronomical event in all of its glory. Photos: Past ...
A common measure of flare duration is the full width at half maximum (FWHM) time of flux in the soft X-ray bands 0.05 to 0.4 and 0.1 to 0.8 nm measured by GOES. The FWHM time spans from when a flare's flux first reaches halfway between its maximum flux and the background flux and when it again reaches this value as the flare decays.