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#1
Waspie_Dwarf
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We are all in the gutter, but some of us are looking at the stars.
Oscar Wilde
Posted 24 September 2012 - 04:27 PM
The X-Ray Sun Over 5.5 Years
Behold five and a half years worth of full-sun observations from XRT. A dramatic illustration of the solar cycle, this movie begins about one year before the first reversed-polarity sunspot ushered in the current cycle on January 8, 2008. The solar cycle is a periodic variation in the Sun's activity that is caused by the gradual "tangling" and eventual reversal of its magnetic field.
Credit:JAXA/NAOJ/NASA
Source: NASA - Multimedia
"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001
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#2
booNyzarC
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Posted 24 September 2012 - 04:38 PM
Wow, pretty amazing video. Can actually see somewhat dramatic changes in the activity over the last 5 years.
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