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dijonnais
#1 Dec 9 2010 09:59am
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Je ne sais pas si ce topic existe déjà ici .
Postez ici toute image que vous considérez comme l'image du jour. Elle peut concerner tout sujet.

Je commence ici par un thème que j'aime beaucoup : l'astronomie. Je consulte tous les jours le site de la NASA depuis des années pour admirer la photo astronomique du jour (une photo est postée tous les jours depuis 1995).
Voila la photo postée ce 9 décembre 2010 :



Commentaires de la NASA :

Explanation: One of the brightest galaxies in planet Earth's sky and similar in size to the Milky Way, big, beautiful spiral M81 lies 11.8 million light-years away in the northern constellation Ursa Major. This deep image of the region reveals details in the bright yellow core, but at the same time follows fainter features along the galaxy's gorgeous blue spiral arms and sweeping dust lanes. It also follows the expansive, arcing feature, known as Arp's loop, that seems to rise from the galaxy's disk at the right. Studied in the 1960s, Arp's loop has been thought to be a tidal tail, material pulled out of M81 by gravitational interaction with its large neighboring galaxy M82. But a recent investigation demonstrates that much of Arp's loop likely lies within our own galaxy. The loop's colors in visible and infrared light match the colors of pervasive clouds of dust, relatively unexplored galactic cirrus only a few hundred light-years above the plane of the Milky Way. Along with the Milky Way's stars, the dust clouds lie in the foreground of this remarkable view. M81's dwarf companion galaxy, Holmberg IX, can be seen just above and left of the large spiral. On the sky, this image spans about 0.5 degrees, about the size of the Full Moon.

Haewyr
#2 Dec 9 2010 10:02am
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fdp
#3 Dec 9 2010 10:03am
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Quote (Haewyr @ 9 Dec 2010 17:02)


^^
Skinzz
#4 Dec 9 2010 10:03am
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salulole
#5 Dec 9 2010 10:23am
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D60ok
#6 Dec 9 2010 10:28am
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Quote (salulole @ Dec 9 2010 05:23pm)
http://www.staragora.com/images/flux/default/c/1/1cadecc870d272dbdae213a02076af804d00f060b2bdd.jpg


C kla nouvelle ou lancienne sa?
scaroto
#7 Dec 9 2010 10:33am
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Quote (D60ok @ Dec 9 2010 04:28pm)
C kla nouvelle ou lancienne sa?


en même tps ya marké 2011

dur dur ...
D60ok
#8 Dec 9 2010 11:23am
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Quote (scaroto @ Dec 9 2010 05:33pm)
en même tps ya marké 2011

dur dur ...


jvoyais mal ac litouch
fire92
#9 Dec 9 2010 11:24am
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Quote (D60ok @ Dec 9 2010 05:28pm)
C kla nouvelle ou lancienne sa?


LOL
wacoc
#10 Dec 9 2010 11:26am
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Quote (Haewyr @ Dec 9 2010 05:02pm)


^^

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