GSFC: SDO Shows A Little Rain On the Sun

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GSFC: SDO Shows A Little Rain On the Sun

Post by bystander » Thu Feb 21, 2013 9:21 pm

SDO Shows A Little Rain On the Sun
NASA | GSFC | SDO | 2013 Feb 20
Click to play embedded YouTube video.
Eruptive events on the sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection (CME), and some with complex moving structures in association with changes in magnetic field lines that loop up into the sun's atmosphere, the corona.

On July 19, 2012, an eruption occurred on the sun that produced all three. A moderately powerful solar flare exploded on the sun's lower right limb, sending out light and radiation. Next came a CME, which shot off to the right out into space. And then, the sun treated viewers to one of its dazzling magnetic displays – a phenomenon known as coronal rain.

Over the course of the next day, hot plasma in the corona cooled and condensed along strong magnetic fields in the region. Magnetic fields, themselves, are invisible, but the charged plasma is forced to move along the lines, showing up brightly in the extreme ultraviolet wavelength of 304 Angstroms, which highlights material at a temperature of about 50,000 Kelvin. This plasma acts as a tracer, helping scientists watch the dance of magnetic fields on the sun, outlining the fields as it slowly falls back to the solar surface.

The footage in this video was collected by NASA’s Solar Dynamics Observatory's Atmospheric Imaging Assembly (AIA) instrument. SDO collected one frame every 12 seconds, and the movie plays at 30 frames per second, so each second in this video corresponds to six minutes of real time. The video covers 12:30 a.m. EDT to 10:00 p.m. EDT on July 19, 2012.

Credit: NASA/GSFC/SDO/Goddard Scientific Visualization Studio
Music: "Thunderbolt" by Lars Leonhard

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Re: GSFC: SDO Shows A Little Rain On the Sun

Post by Beyond » Thu Feb 21, 2013 11:26 pm

Now they tell us, when it's tooo late to grab our asbestous soap and get a free HOT shower. That 89,000 degree F plasma is really good at removeing the dirt under the fingernails :!:
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