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Astronomy Picture of the Day -- North Celestial Tree
NASA ^ | October 23, 2013 | (see photo credit)

Posted on 10/23/2013 8:51:56 PM PDT by SunkenCiv

Explanation: If you climbed this magnificent tree, it looks like you could reach out and touch the North Celestial Pole at the center of all the star trail arcs. The well-composed image was recorded over a period of nearly 2 hours as a series of 30 second long, consecutive exposures on the night of October 5. The exposures were made with a digital camera fixed to a tripod near Almaden de la Plata, province of Seville, in southern Spain, planet Earth. Of course, the graceful star trails reflect the Earth's daily rotation around its axis. By extension, the axis of rotation leads to the center of the concentric arcs in the night sky. Convenient for northern hemisphere night sky photographers and celestial navigators alike, the bright star Polaris is very close to the North Celestial Pole and so makes the short bright trail in the central gap between the leafy branches.

October 23, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science
[Credit & Copyright: Jerónimo Losada]

1 posted on 10/23/2013 8:51:56 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
The Big One

2 posted on 10/23/2013 8:52:17 PM PDT by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: SunkenCiv
Can see that real time with a couple of healthy jolts of Smirnoff...........I've heard :)
3 posted on 10/23/2013 8:59:41 PM PDT by The Cajun (Sarah Palin, Mark Levin, Ted Cruz......Nuff said.)
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To: SunkenCiv

Looks like a van Gogh to me.


4 posted on 10/23/2013 9:02:38 PM PDT by bimboeruption
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To: SunkenCiv

Gorgeous.


5 posted on 10/23/2013 9:04:34 PM PDT by pax_et_bonum (Never Forget the Seals of Extortion 17 - and God Bless Americad)
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