Comments and questions about the
APOD on the main view screen.
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APOD Robot
- Otto Posterman
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by APOD Robot » Wed Nov 21, 2012 5:06 am
Diamond Ring and Shadow Bands
Explanation: As the total phase of
last week's solar eclipse came to an end, sunlight streaming past the edge of the Moon created the fleeting appearance of a glistening diamond ring
in the sky. And while most
eclipse watchers did not consider clouds a welcome sight, a view through thin clouds north of Cairns in Queensland, Australia also revealed these remarkable flickering
shadow bands. Projected onto the cloud layer, the bands are parallel to the sliver of emerging sunlight. Caused by
turbulence in Earth's atmosphere refracting the sliver of sunlight, the narrow bands were captured in this brief, 1/1000th second exposure.
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hunterr
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by hunterr » Wed Nov 21, 2012 1:37 pm
Still no FB "Share" button? C'mon, man!This is a gret pic . . .
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moonstruck
- Science Officer
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by moonstruck » Wed Nov 21, 2012 2:36 pm
Nice work Steven.
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geckzilla
- Ocular Digitator
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by geckzilla » Wed Nov 21, 2012 3:07 pm
hunterr wrote:Still no FB "Share" button? C'mon, man!This is a gret pic . . .
Just copy and paste this link:
http://apod.nasa.gov/apod/ap121121.html
And put it on your timeline. It's the same thing.
Just call me "geck" because "zilla" is like a last name.
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neufer
- Vacationer at Tralfamadore
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by neufer » Wed Nov 21, 2012 3:27 pm
http://www.strickling.net/shadowbands.htm wrote:
_Shadow bands during a total solar eclipse_ by Dr. Wolfgang Strickling
fliegende Schatten Contrast enhanced and processed screenshot
from our Hi8-Video, 18 seconds before the second contact.
Videotaped by Dr. Andreas Dahm. Time is UT +2 h
For a highly resolved picture click on the right picture!
On the left you see an animated GIF of the shadowbands
Atmospheric turbulence (and/or an atmospheric shock wave caused by the supersonic lunar shadow movement) not only bends the light of a much more distant eclipse sliver of emerging sunlight but focuses and brightens it into multiple eclipse sliver images which then optically interfere with each other to produce diffraction shadowbands both on the ground and on cirrus clouds above.
------------------------------------------------------------------
In this illustration, the gravity of a large galaxy cluster
not only bends the light of a much more distant galaxy
but focuses and brightens it into multiple images.
Credit: NASA/ESA/L. Calcada
Last edited by neufer on Wed Nov 21, 2012 4:44 pm, edited 1 time in total.
Art Neuendorffer
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LocalColor
- Science Officer
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by LocalColor » Wed Nov 21, 2012 3:43 pm
Exciting and stunning photo! Thank you.
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mtbdudex
- Ensign
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by mtbdudex » Wed Nov 21, 2012 4:13 pm
Stephen first posted this in our little Canon astrophotography forum.....congrats again!
http://photography-on-the.net/forum/sho ... ?t=1247784
Mike R, P.E. .....iMac 27"(i7), iPad2, iPhone5s, 24" iMac, AppleTV(160), MacBook
Canon: 70D + lens:70-200 L f2.8 IS II / TC 1.4x 2x / 11-16 / 15-85 / f1.4 50
FEISOL tripod CT-3441S + CB-40D Ball Head / iOptron EQ tracker
http://apod.nasa.gov/apod/ap110805.html
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bystander
- Apathetic Retiree
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by bystander » Wed Nov 21, 2012 4:41 pm
geckzilla wrote:hunterr wrote:Still no FB "Share" button? C'mon, man!This is a gret pic . . .
Just copy and paste this link:
http://apod.nasa.gov/apod/ap121121.html
And put it on your timeline. It's the same thing.
Or, 'like'
Astronomy Picture of the Day (APOD) on facebook, and you can 'share' from there.
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk. — Garrison Keillor
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ta152h0
- Schooled
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by ta152h0 » Wed Nov 21, 2012 6:07 pm
very nice image, pass me an ice cold on, please !
Wolf Kotenberg
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Boomer12k
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by Boomer12k » Wed Nov 21, 2012 7:28 pm
"Who wants to buyyyy, this Diamond Reeeeeeeiiinng....She took it off her finger, now....it doesn't mean a theeeeeinnng...."
Lovely ethereal shot of the eclipse. Which reminded me of the old song. And my own heartache....
Let's hear it for Boomer.....AWWWWWWWE....
:---[===] *
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ta152h0
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by ta152h0 » Wed Nov 21, 2012 7:39 pm
Gary Lewis and the Playboys 1964 ??? Ed Sullivan show I was in Ann Arbor, Michigan
Wolf Kotenberg
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Leo Vuyk
- Asternaut
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by Leo Vuyk » Wed Nov 21, 2012 11:25 pm
At the right side of the moon, we may observe a clear anomalous cloudy globule with two little horns at the top?
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Mactavish
- Ensign
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by Mactavish » Wed Nov 21, 2012 11:59 pm
There have been a lot of really good eclipse photos on APOD and elsewhere . . . but for my liking, this is the best of them all. This image has a grip and does not want to let you go. You could not have timed it any better. Wonderful job, Stephen!
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ta152h0
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by ta152h0 » Thu Nov 22, 2012 12:33 am
is it possible to get an image like this one from the ISS ?
Wolf Kotenberg
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Moonlady
- Selenian
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by Moonlady » Thu Nov 22, 2012 12:48 am
I cant get enough APODs! This one is great!
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Stephen Mudge
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by Stephen Mudge » Thu Nov 22, 2012 2:42 am
Thanks very much for all the comments! Much appreciated.
Cheers,
Stephen
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FLPhotoCatcher
- Science Officer
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by FLPhotoCatcher » Thu Nov 22, 2012 3:30 am
Awesome photo!
Has anyone tried to duplicate the shadow bands with a model of an eclipse? You might have to add a convecting heat source between the 'moon' and a white screen (where you observe the bands) for it to work.