by APOD Robot » Wed Oct 10, 2018 4:05 am
Sun Dance
Explanation: Sometimes, the surface of our Sun seems to dance. In the middle of 2012, for example, NASA's Sun-orbiting
Solar Dynamic Observatory spacecraft imaged an
impressive prominence that seemed to perform a
running dive roll like an acrobatic dancer. The
dramatic explosion was
captured in
ultraviolet light in the
featured time-lapse video covering about three hours. A looping
magnetic field directed the flow of hot
plasma on the
Sun. The scale of the
dancing prominence is huge -- the entire
Earth would easily fit under the flowing
arch of hot gas. A quiescent
prominence typically lasts about a month, and may erupt in a
Coronal Mass Ejection (CME)
expelling hot gas into the
Solar System. The energy mechanism that creates a
solar prominence is still a topic of
research. Unlike 2012, this year the Sun's surface is significantly
more serene, featuring fewer spinning prominences, as it is near
the minimum in its
11-year magnetic cycle.
[url=https://apod.nasa.gov/apod/ap181010.html] [img]https://apod.nasa.gov/apod/calendar/S_181010.jpg[/img] [size=150]Sun Dance[/size][/url]
[b] Explanation: [/b] Sometimes, the surface of our Sun seems to dance. In the middle of 2012, for example, NASA's Sun-orbiting [url=https://www.nasa.gov/mission_pages/sdo/main/index.html]Solar Dynamic Observatory[/url] spacecraft imaged an [url=https://apod.nasa.gov/apod/ap030223.html]impressive prominence[/url] that seemed to perform a [url=https://youtu.be/VzALZjoIx0g?t=225]running dive roll[/url] like an acrobatic dancer. The [url=https://apod.nasa.gov/apod/ap110307.html]dramatic explosion[/url] was [url=http://cometal-comets.blogspot.com/2012/08/sdo-spinning-plasma.html?m=1]captured[/url] in [url=https://science.nasa.gov/ems/10_ultravioletwaves]ultraviolet light[/url] in the [url=https://www.youtube.com/embed/hQFEHH5E69s]featured time-lapse video[/url] covering about three hours. A looping [url=https://solarscience.msfc.nasa.gov/the_key.shtml]magnetic field[/url] directed the flow of hot [url=https://en.wikipedia.org/wiki/Plasma_(physics)]plasma[/url] on the [url=https://solarsystem.nasa.gov/solar-system/sun/in-depth/]Sun[/url]. The scale of the [url=https://apod.nasa.gov/apod/ap000809.html]dancing prominence[/url] is huge -- the entire [url=https://apod.nasa.gov/apod/ap121207.html]Earth[/url] would easily fit under the flowing [url=https://apod.nasa.gov/apod/ap170429.html]arch[/url] of hot gas. A quiescent [url=http://solar.physics.montana.edu/YPOP/Program/hfilament.html]prominence typically[/url] lasts about a month, and may erupt in a [url=https://www.swpc.noaa.gov/phenomena/coronal-mass-ejections]Coronal Mass Ejection[/url] (CME) [url=https://apod.nasa.gov/apod/ap010924.html]expelling hot gas[/url] into the [url=http://en.wikipedia.org/wiki/Sweden_Solar_System]Solar System[/url]. The energy mechanism that creates a [url=https://apod.nasa.gov/apod/ap030707.html]solar prominence[/url] is still a topic of [url=http://adsabs.harvard.edu/abs/2004ApJ...600.1043Z]research[/url]. Unlike 2012, this year the Sun's surface is significantly [url=https://apod.nasa.gov/apod/ap180820.html]more serene[/url], featuring fewer spinning prominences, as it is near [url=https://science.nasa.gov/science-news/news-articles/solar-minimum-is-coming]the minimum[/url] in its [url=https://apod.nasa.gov/apod/ap071203.html]11-year magnetic cycle[/url].
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