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Astronomy Picture of the Day 10-15-02
NASA ^ | 10-15-02 | Robert Nemiroff and Jerry Bonnell

Posted on 10/15/2002 3:13:14 PM PDT by petuniasevan

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2002 October 15
See Explanation.  Clicking on the picture will download
 the highest resolution version available.

Aurora's Ring
Credit & Copyright: Trygve Lindersen

Explanation: Gusting solar winds and blasts of charged particles from the Sun made the early days of October rewarding ones for those anticipating auroras. While out enjoying the stormy space weather from Toemmeraas, Norway, Trygve Lindersen recorded this picturesque apparition of the northern lights with a digital camera on October 6. From this perspective, the curtains of green light formed a ring which seemed to hover, wraithlike, just above the foreground trees. But the ring of light was actually 100 kilometers or more above the trees and the greenish glow produced by oxygen molecules interacting with energetic electrons and fluorescing near the edge of space. After days of enchanting auroral displays on planet Earth, the solar activity which triggered October's geomagnetic storms seems to have subsided ... for now.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: aurora; glow; image; ionization; ionosphere; light; magnetic; magnetosphere; photography; solar; storm
Invariably, it's cloudy here when a good aurora comes along.

Astronomy Fun Fact:

Like a neon sign, auroral light is produced by a high-vacuum electrical discharge. The solar wind powers the gigantic electrical discharge process, causing the magnetosphere to behave as a generator that produces up to ten million megawatts of electrical power.

1 posted on 10/15/2002 3:13:15 PM PDT by petuniasevan
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To: MozartLover; Joan912; NovemberCharlie; snowfox; Dawgsquat; viligantcitizen; theDentist; ...

Sorry I'm so slow getting this puppy posted. My internet was down (rare occurrence!) this morning when I got home from work.

2 posted on 10/15/2002 3:15:41 PM PDT by petuniasevan
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To: petuniasevan
I love Aurora's.. thanks!! (Nebula's too!!)
3 posted on 10/15/2002 3:43:29 PM PDT by Vets_Husband_and_Wife
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To: petuniasevan
Yes, there is vast power in the aurora. If can tap into it we can probably run the power grid and then some. Research into doing this is going on now at the Univ of Alaska, and the HAARP is also providing data along that line.
4 posted on 10/15/2002 4:06:15 PM PDT by RightWhale
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To: petuniasevan
Sorry I'm so slow getting this puppy posted.

Wow! Well worth the wait.
Thanks!

5 posted on 10/15/2002 5:51:00 PM PDT by sistergoldenhair
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To: petuniasevan
Beautiful!
6 posted on 10/15/2002 5:57:39 PM PDT by mtngrl@vrwc
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