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Astronomy Picture of the Day
NASA ^ | 5/4/10 | A. Tudorica (ISS Romania)

Posted on 05/04/2010 5:46:00 AM PDT by sig226


A Hall of Mountain Glory
Credit & Copyright:
A. Tudorica (ISS Romania)

Explanation: If you tried to enter this hall of fog, you would find it dissipates around you. The hall is actually an the mountain from which this picture was taken. Known as "the glory", the phenomenon is frequently seen from airplanes. The ring's center is not visible, but if it were, the shadow of the observer would appear. This shadow would likely change as clouds passed, creating a faux moving giant known as the Brocken Spectre. Pictured above, several concentric rings of the glory appear to create a hall for this mountain king. The cause of the glory has only been understood recently and is relatively complex. Briefly, small droplets of water reflect, refract, and diffract sunlight backwards towards the Sun. The phenomenon has a counterpart in astronomy, where looking out from planet Earth in the direction opposite the Sun yields a bright spot called the gegenschein.


TOPICS: Astronomy Picture of the Day
KEYWORDS: apod; gegenschein

1 posted on 05/04/2010 5:46:00 AM PDT by sig226
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To: null and void; fnord; Number57; KevinDavis; rdb3; MNJohnnie; RightWhale; proudofthesouth; ...

2 posted on 05/04/2010 5:46:39 AM PDT by sig226 (Mourn this day, the death of a great republic. March 21, 2010)
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To: sig226

Not exactly ‘Astronomy’ but a keeper none the less :-)


3 posted on 05/04/2010 5:51:04 AM PDT by Condor51 (SAT CONG!)
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To: sig226

Nice “Spill the Wine” reference. :-)


4 posted on 05/04/2010 5:57:23 AM PDT by Thrownatbirth (.....Iraq Invasion fan since '91.)
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To: Thrownatbirth
Nice “Spill the Wine” reference. :-)

Actually, I think they were probably referencing Grieg.

5 posted on 05/04/2010 6:34:48 AM PDT by dirtboy
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To: sig226

That is really awesome. It reminds me a little of the lunar rainbow we saw one night driving in the mountains of Colorado.


6 posted on 05/04/2010 6:14:30 PM PDT by brytlea (Jesus loves me, this I know.)
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