Fichier:Hubble Observes Glowing, Fiery Shells of Gas.jpg

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Description
English: may look like something from "The Lord of the Rings," but this fiery swirl is actually a planetary nebula known as ESO 456-67. Set against a backdrop of bright stars, the rust-colored object lies in the constellation of Sagittarius (The Archer), in the southern sky. In this image of ESO 456-67, it is possible to see the various layers of material expelled by the central star. Each appears in a different hue - red, orange, yellow, and green-tinted bands of gas are visible, with clear patches of space at the heart of the nebula. It is not fully understood how planetary nebulae form such a wide variety of shapes and structures; some appear to be spherical, some elliptical, others shoot material in waves from their polar regions, some look like hourglasses or figures of eight, and others resemble large, messy stellar explosions - to name but a few.
Date
Source http://www.nasa.gov/multimedia/imagegallery/image_feature_2460.html
Auteur ESA/Hubble and NASA

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actuel2 mars 2013 à 11:24Vignette pour la version du 2 mars 2013 à 11:241 600 × 1 600 (1,28 Mio)Stas1995User created page with UploadWizard

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