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Image:Lent grav.jpg

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This image was copied from wikipedia:fr. The original description was:

Trous noirs : lentille gravitationnelle

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Photographie de l'fr:Agence spatiale européenne, prise par le télescope américain Hubble, d'un effet de fr:lentille gravitationnelle plus connu sous le nom anglophone d'Einstein Cross. Il s'agit de quatre images d'un même fr:quasar, distant d'environ 8 milliards d'années lumière et certainement démultiplié par la présence d'une fr:galaxie (située elle à environ 400 millions d'al.). L'angle de séparation entre les bords inférieurs et supérieurs de l'image est inférieur à 1,6 seconde d'arc.

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This PD file was uploaded by the bot User:Loveless and is beeing checked for the following reasons :
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