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View Full Version : A solar flare, and rain on the sun



joboo
24th February 2013, 01:32 AM
Earth to scale.....4476


https://www.youtube.com/watch?v=w4JS6isT4C8

"Published on Feb 22, 2013
In this amazing video you can see what in effect is rain on the sun, but it is the plasma dropping from the magnetic fields. On July 19, 2012, an eruption occurred on the sun that produced a moderately powerful solar flare and a dazzling magnetic display known as coronal rain. Hot plasma in the corona cooled and condensed along strong magnetic fields in the region. Magnetic fields, are invisible, but the charged plasma is forced to move along the lines, showing up brightly in the extreme ultraviolet wavelength of 304 Angstroms, and outlining the fields as it slowly falls back to the solar surface."

"February 23, 2013 — A rare confluence of astronomical events begins with a solar flare ejecting coronal matter into space, then pulling it back down into the sun's surface.

NASA released this video over the weekend, showing a sped-up depiction of a solar flare that seems to culminate in solar material raining back down on the sun's surface.

Karen C. Fox, of NASA's Goddard Flight Centre, wrote an explanation (http://www.nasa.gov/mission_pages/sdo/news/coronal-rain.html) of just what was happening when NASA telescopes captured the images in July:

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, and NASA released the images late last week"

joboo
25th February 2013, 12:05 AM
Aslo very cool in hi def. Never ceases to amaze me how insignificant, and microscopic we are from an energy perspective, yet we all toil our lives away to get the tiniest piece of it.


https://www.youtube.com/watch?v=tY2n2CHMXfI

vacuum
25th February 2013, 12:23 AM
I'm always simply amazed at any videos involving the sun.

People used to worship it and they didn't even know how awesome it was. Nowadays we've developed the technology to know everything about it, but unfortunately we've lost the respect and awe for it.

Cebu_4_2
25th February 2013, 01:05 AM
https://www.youtube.com/watch?v=kRdtKUWn_wI

https://www.youtube.com/watch?v=kRdtKUWn_wI