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Coronal Hole Facing Earth

sun corona coronal hole solar wind solar dynamics observatory

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#1    Waspie_Dwarf

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Posted 16 December 2013 - 11:04 PM


Coronal Hole Facing Earth

A significantly large coronal hole rotated across the middle of the Sun to be in a position to affect Earth (Dec. 9 - 13, 2013). Viewed in extreme ultraviolet light, the dark region is where the magnetic field of the Sun is more open, emitting streams of high-speed solar wind. Over the next few days, this solar wind is likely to impact Earth's magnetosphere and possibly cause displays of aurora.

Credit: Solar Dynamics Observatory/NASA

Source: NASA - Multimedia

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#2    moonshadow60

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Posted 16 December 2013 - 11:24 PM

Oh, I hope there are lovely displays of the Aurora Borealis this year.  When is it that the sun's polarity is supposed to shift?


#3    toast

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Posted 16 December 2013 - 11:29 PM

View Postmoonshadow60, on 16 December 2013 - 11:24 PM, said:

Oh, I hope there are lovely displays of the Aurora Borealis this year.  When is it that the sun's polarity is supposed to shift?

Enjoy:
http://spaceweather.com/

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#4    Waspie_Dwarf

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Posted 16 December 2013 - 11:29 PM

View Postmoonshadow60, on 16 December 2013 - 11:24 PM, said:

When is it that the sun's polarity is supposed to shift?
Any time now.

It's not something that can be predicted with 100% accuracy. Astronomers have been expecting it since August.

"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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#5    moonshadow60

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Posted 17 December 2013 - 03:49 PM

Thank you for the link, Toast.  I bookmarked it.  I don't know much about space, physics or science, but it is a fascinating subject.


#6    Merc14

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Posted 17 December 2013 - 06:51 PM

One thing I have never seen in the sky is the Aurora Borealis and have always wished I had.

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