APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug 24)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 3237
Joined: Fri Dec 04, 2009 3:27 am

APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug 24)

Post by APOD Robot » Wed Aug 24, 2011 4:06 am

Image A Pileus Iridescent Cloud Over Ethiopia

Explanation: Yes, but how many dark clouds have a multicolored lining? Pictured, behind this darker cloud, is a pileus iridescent cloud, a group of water droplets that have a uniformly similar size and so together diffract different colors of sunlight by different amounts. The above image was taken just after the picturesque sight was noticed by chance by a photographer in Ethiopia. A more detailed picture of the same cloud shows not only many colors, but unusual dark and wavy bands whose origins are thought related to wave disturbances in the cloud.

<< Previous APODDiscuss Any APOD Next APOD >>
[/b]

User avatar
bystander
Apathetic Retiree
Posts: 17197
Joined: Mon Aug 28, 2006 2:06 pm
Location: Oklahoma

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by bystander » Wed Aug 24, 2011 4:30 am

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

User avatar
Ann
4725 Å
Posts: 8885
Joined: Sat May 29, 2010 5:33 am

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by Ann » Wed Aug 24, 2011 5:16 am

Image
Nice cloud! And I really, really like one of the links of today's APOD, the one showing us the more detailed picture of the cloud.

Ann
Color Commentator

georgevedwards
Asternaut
Posts: 3
Joined: Tue Jul 27, 2010 8:43 am

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by georgevedwards » Wed Aug 24, 2011 5:44 am

It's a UFO!
Last edited by georgevedwards on Tue Aug 30, 2011 4:09 am, edited 2 times in total.
Reason: Radio edit

User avatar
Indigo_Sunrise
Science Officer
Posts: 424
Joined: Fri Jul 15, 2005 1:40 pm
Location: SoMd

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by Indigo_Sunrise » Wed Aug 24, 2011 10:56 am

This is an interesting image. I've never seen (or, to be honest, heard of) pileus iridescent clouds. I have heard of - and seen - 'regular' iridescent clouds, and even taken pictures of some. But I had to look up the word 'pileus', just so I knew what it meant, and then I understood the difference! :lol: (APOD is fast becoming a great word-of-the-day site, too! :D )
This link was immensly helpful. And this one I liked because it shows how small one of these can appear next to such a large cumulus cloud.
Maybe I've seen one and not realized it???!!? I've got to start looking more closely!

Wonderful image!

8-)
Forget the box, just get outside.

User avatar
orin stepanek
Plutopian
Posts: 4564
Joined: Wed Jul 27, 2005 3:41 pm
Location: Nebraska

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by orin stepanek » Wed Aug 24, 2011 12:02 pm

A beautiful image worthy of becoming a background. 8-)
Orin

Smile today; tomorrow's another day!

User avatar
neufer
Vacationer at Tralfamadore
Posts: 15131
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by neufer » Wed Aug 24, 2011 2:24 pm

Image
Click to play embedded YouTube video.
Last edited by neufer on Thu Aug 25, 2011 2:48 am, edited 1 time in total.
Art Neuendorffer

User avatar
JohnD
Tea Time, Guv! Cheerio!
Posts: 1042
Joined: Wed Feb 16, 2005 2:11 pm
Location: Lancaster, England

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by JohnD » Wed Aug 24, 2011 5:26 pm

Wow! And that is seen in Ethiopia, the fount and origin of the Rastafari culture.
(Although, "Rastafari not a culture, it's a reality." Bob Marley)
It becomes obvious where the rasta hat comes from:

http://hatguide.co.uk/rasta-hat/
Image

Uploaded with ImageShack.us
John

Ras Tafiri - he here to make bad ting good, good ting better and better ting best - Pete Tong

tECH hIPPY

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by tECH hIPPY » Wed Aug 24, 2011 8:20 pm

Far out, Mon! It could almost be fractal imagery, especially the detail pic.
http://www.fractal-wallpapers.com/Fract ... wallpaper/

jkbonner

Re: APOD: A Pileus Iridescent Cloud Over Ethiopia (2011 Aug

Post by jkbonner » Sun Aug 28, 2011 9:02 pm

I see a resemblence with the irridecent clouds structure as viewed close up and the structure of the apparent dunes on Titan from the image PIA14500, and both look like a finger print...interesting.