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Dragon Tail Filament Erupts February 1, 2013

Posted by jtintle in Planets.
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A long and complex strand of plasma hanging above the Sun’s surface erupted (Jan. 31, 2013) as a long loop that stretched and broke apart as it burst into space. Much of the material actually fell back into Sun unable to break free of the Sun’s gravity. The images from NASA’s Solar Dynamics Observatory (SDO) were taken in a wavelength of extreme ultraviolet light (304 Angstroms). The movie covers about six hours of activity. We called it a ‘dragon tail filament’ because before it erupted, it did resemble one. Plasma is a hot gas composed of electrically charged hydrogen and helium.
Another version shown below combines the 304 Angstrom wavelength with the 193 Angstrom, which offers better detail of the motions of the filament before it breaks away.


Solar Dynamics Observatory, NASA, the AIA, EVE, and HMI science teams



XRT Observes Corona of Million Degrees January 6, 2007

Posted by jtintle in Space Fotos, Sun.
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In the press conference held on 20 December 2006, latest data and movie from X-Ray Telescope (XRT) had been released. XRT observes corona of million degrees. It is still a mystery how the corona is heated to that high temperature. This movie show activity of solar corona for 12 days. An active region goes behind the west limb while another one comes from east limb. Ubiquitous small brightenings suggest magnetic activity is taking place all around the Sun.

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