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Astronomy Picture of the Day -- September's Aurora
NASA ^ | September 21, 2012 | (see photo credit)

Posted on 09/21/2012 3:29:42 PM PDT by SunkenCiv

Explanation: September's equinox arrives tomorrow as the Sun crosses the celestial equator heading south. The event marks the astronomical beginning of spring in the southern hemisphere and autumn in the north. And though the connection is still puzzling, the equinox seasons bring an increase in geomagnetic storms. So as northern nights grow longer, the equinox also heralds the arrival of a good season for aurora hunters. Recorded on September 20, these colorful northern lights were captured with camera and wide-angle lens near the Norwegian Sea coast outside Tromsø in Northern Norway. Shining at altitudes of 100 kilometers or so, the aurora rays are parallel, but perspective makes them appear to radiate from a vanishing point behind the silhouetted pine tree. Stars in this enchanting northern night include Polaris above and right of the tree top, and yellowish giant stars Shedar (Alpha Cassiopiae) to the left and Kochab (Beta Ursae Minoris) to the right. Bright Altair shines through the greenish auroral curtain at the lower left of the scene.

September 21, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: alphacassiopiae; altair; apod; astronomy; aurora; betaursaeminoris; equinox; kochab; norway; polaris; science; shedar
[Credit & Copyright: Fredrick Broms (Northern Lights Photography)]

1 posted on 09/21/2012 3:29:50 PM PDT by SunkenCiv
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September Equinox

September Equinox

2 posted on 09/21/2012 3:30:55 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

NASA's Muzzie outreach strikes again -- Kochab and Shedar are the Arabic names for a couple of these stars.

3 posted on 09/21/2012 3:33:59 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Breathtaking!


4 posted on 09/21/2012 3:36:51 PM PDT by DallasDeb (usafa06mom)
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To: SunkenCiv

yep.

Nice picture, though.


5 posted on 09/21/2012 3:50:16 PM PDT by left that other site (Worry is the Darkroom that Develops Negatives.)
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To: SunkenCiv
NASA's Muzzie outreach strikes again -- Kochab and Shedar are the Arabic names for a couple of these stars.

That will help the Camels on a night mission across the desert navigate more easily, knowing they no longer have too use infidel stars, they now have some of their own.

Cheers SC.

6 posted on 09/21/2012 3:53:54 PM PDT by moose07 (The truth will out, one day.)
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To: DallasDeb

My most favorite desktops are auroras, G-d’s handiwork.


7 posted on 09/21/2012 4:03:32 PM PDT by MestaMachine (obama kills and bo stinks)
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To: moose07
We can tell the Muslims that "equinox" is Latin for "night of the horse" but that it's an Arabian horse.

Making the Muslims feel good about themselves in one of our chief foreign policy goals with this administration, after all. (Along with pushing abortion and gay rights on other countries.)

(Yes, I know that "equinox" actually comes from aequinoctium and has nothing to do with horses...or camels.)

8 posted on 09/21/2012 6:53:58 PM PDT by Verginius Rufus
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To: MestaMachine

I was born in Minnesota and lived there until I was 10. I remember playing outside after dark and seeing the auroras. I loved them—wasn’t scared at all. I have always longed to see them again. Thanks for the post.


9 posted on 09/24/2012 9:34:27 AM PDT by DallasDeb (usafa06mom)
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