by APOD Robot » Sun Sep 16, 2018 4:07 am
A Solar Filament Erupts
Explanation: What's happened to our Sun? Nothing very unusual -- it just
threw a filament. Toward the middle of 2012, a long standing
solar filament suddenly erupted into space producing an energetic Coronal Mass Ejection (CME).
The filament had been held up for days by the Sun's ever changing
magnetic field and the timing of the eruption was unexpected.
Watched closely by the Sun-orbiting Solar Dynamics Observatory, the resulting
explosion shot electrons and ions into the Solar System, some of which arrived at Earth three days later and impacted Earth's
magnetosphere, causing visible
aurorae. Loops of plasma surrounding an
active region can be seen above the erupting filament in
the featured ultraviolet image. Although the Sun is now in a
relatively inactive state of its
11-year cycle, unexpected
holes have opened in the
Sun's corona allowing an excess of
charged particles to stream into space. As before, these charged particles are
creating auroras.
[url=https://apod.nasa.gov/apod/ap180916.html] [img]https://apod.nasa.gov/apod/calendar/S_180916.jpg[/img] [size=150]A Solar Filament Erupts[/size][/url]
[b] Explanation: [/b] What's happened to our Sun? Nothing very unusual -- it just [url=https://apod.nasa.gov/apod/ap101215.html]threw a filament[/url]. Toward the middle of 2012, a long standing [url=http://solar.physics.montana.edu/ypop/Program/hfilament.html]solar filament[/url] suddenly erupted into space producing an energetic Coronal Mass Ejection (CME). [url=http://blogs.discovermagazine.com/badastronomy/2012/09/10/a-huge-solar-filament-erupts-into-space/]The filament[/url] had been held up for days by the Sun's ever changing [url=http://solar-center.stanford.edu/magnetism/magneticfields.html]magnetic field[/url] and the timing of the eruption was unexpected. [url=http://www.flickr.com/photos/gsfc/sets/72157631408160534/]Watched closely[/url] by the Sun-orbiting Solar Dynamics Observatory, the resulting [url=http://www.flickr.com/photos/gsfc/7931868316/in/set-72157631408160534]explosion[/url] [url=http://www.flickr.com/photos/gsfc/7938936660/in/set-72157631408160534]shot[/url] electrons and ions into the Solar System, some of which arrived at Earth three days later and impacted Earth's [url=http://en.wikipedia.org/wiki/Magnetosphere]magnetosphere[/url], causing visible [url=https://apod.nasa.gov/apod/ap120321.html]aurorae[/url]. Loops of plasma surrounding an [url=https://apod.nasa.gov/apod/ap080924.html]active region[/url] can be seen above the erupting filament in [url=http://www.flickr.com/photos/gsfc/7931831962/in/set-72157631408160534/]the featured[/url] [url=https://science.nasa.gov/ems/10_ultravioletwaves]ultraviolet[/url] image. Although the Sun is now in a [url=https://science.nasa.gov/science-news/news-articles/solar-minimum-is-coming]relatively inactive[/url] state of its [url=https://en.wikipedia.org/wiki/Solar_cycle]11-year cycle[/url], unexpected [url=https://en.wikipedia.org/wiki/Coronal_hole]holes[/url] have opened in the [url=https://apod.nasa.gov/apod/ap180430.html]Sun's corona[/url] allowing an excess of [url=https://en.wikipedia.org/wiki/Charged_particle]charged particles[/url] to stream into space. As before, these charged particles are [url=http://spaceweathergallery.com/aurora_gallery.html]creating auroras[/url].
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