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Astronomy Picture of the Day -- A Year of Sky on Earth
NASA ^ | July 24, 2013 | (see photo credit)

Posted on 07/25/2013 4:39:17 PM PDT by SunkenCiv

Explanation: Each panel shows one day. With 360 movie panels, the sky over (almost) an entire year is shown in time lapse format as recorded by a video camera on the roof of the Exploratorium museum in San Francisco, California. The camera recorded an image every 10 seconds from before sunrise to after sunset and from mid-2009 to mid-2010. A time stamp showing the local time of day is provided on the lower right. The videos are arranged chronologically, with July 28 shown on the upper left, and January 1 located about about half way down. Although every day lasts 24 hours, daylight lasts longest in the northern hemisphere in June and the surrounding summer months, a fact which can be seen here as the bottom (and soon top) videos are the first to light up with dawn. The initial darkness in the middle depicts the delayed dawn and fewer daylight hours of winter. In the videos, darkness indicates night, blue depicts clear day, while gray portrays pervasive daytime cloud cover. Many videos show complex patterns of clouds moving across the camera's wide field as that day progresses. As the videos collectively end, sunset and then darkness descend first on the winter days just above the middle, and last on the mid-summer near the bottom.

July 24, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science; sky; videosky
[Video Credit & Copyright: Ken Murphy (MurphLab); Music Ariel (Moby)]

1 posted on 07/25/2013 4:39:18 PM PDT by SunkenCiv
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http://b.vimeocdn.com/ts/443/803/443803991_295.jpg
http://b.vimeocdn.com/ts/443/803/443803991_640.jpg
http://b.vimeocdn.com/ts/443/803/443803991_960.jpg
http://b.vimeocdn.com/ts/443/803/443803991_1280.jpg


2 posted on 07/25/2013 4:39:41 PM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

Whoops, forgot to post yesterday's. I should be fired and replaced with a simple piece of software programmed by Sheldon Cooper.
Direct link to page with vimeo video

3 posted on 07/25/2013 4:40:31 PM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: SunkenCiv

Very cool.


4 posted on 07/25/2013 4:45:26 PM PDT by dead (I've got my eye out for Mullah Omar.)
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To: SunkenCiv

Interesting and slightly mesmerizing


5 posted on 07/25/2013 4:52:46 PM PDT by AEMILIUS PAULUS (It is a shame that when these people give a riot)
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To: SunkenCiv

Where's the open slot to start ??

6 posted on 07/25/2013 5:38:46 PM PDT by mikrofon (Puzzling)
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To: SunkenCiv

You’re not going anywhere-there’s enough malware for us to deal with, thanks!


7 posted on 07/25/2013 11:02:34 PM PDT by tanuki (Left-wing Revolution: show biz for boring people.)
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To: SunkenCiv

Neat.

Weird how that clock was in the sky on New Year’s eve. ;p


8 posted on 07/26/2013 11:43:51 PM PDT by Impy (RED=COMMUNIST, NOT REPUBLICAN)
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