Fichièr:All that glitters HST.jpg

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Fichièr d'origina ‎(4 167 × 4 090 pixèl, talha del fichièr: 10,93 Mo, tipe MIME: image/jpeg)

Descripcion

Descripcion
English: This striking new NASA/ESA Hubble Space Telescope image shows a glittering bauble named Messier 92. Located in the northern constellation of Hercules, this globular cluster— a ball of stars that orbits a galactic core like a satellite — was first discovered by astronomer Johann Elert Bode in 1777. Messier 92 is one of the brightest globular clusters in the Milky Way, and is visible to the naked eye under good observing conditions. It is very tightly packed with stars, containing some 330 000 stars in total. As is characteristic of globular clusters, the predominant elements within Messier 92 are hydrogen and helium, with only traces of others. It is actually what is known as an Oosterhoff type II (OoII) globular cluster, meaning that it belongs to a group ofmetal-poor clusters — to astronomers, metals are all elements heavier than hydrogen and helium. By exploring the composition of globulars like Messier 92, astronomers can figure out how old these clusters are. As well as being bright, Messier 92 is also old, being one of the oldest star clustersin the Milky Way, with an age almost the same as the age of the Universe. A version of this image was entered into the Hubble’s Hidden Treasures image processing competition by contestant Gilles Chapdelaine. Links Gilles Chapdelaine’s Hidden Treasures entry on Flickr
Data
Font http://www.spacetelescope.org/images/potw1449a/
Autor ESA/Hubble & NASA Acknowledgement: Gilles Chapdelaine

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Ce fichier est disponible selon les termes de la licence Creative Commons Attribution 4.0 International.
Atribucion: ESA/Hubble
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tipus de mèdia d'Internet catalan

image/jpeg

suma de verificació catalan

77aca20825697f634f9569f89e136835c7dd673b

metòde de determinacion : Secure Hash Algorithm 1 catalan

mida de les dades catalan

11 463 435 Byte

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4 090 píxel

amplada catalan

4 167 píxel

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Data e oraMiniaturaDimensionsUtilizaireComentari
actual16 setembre de 2016 a 10.33Miniatura per la version del 16 setembre de 2016 a 10.334 167×4 090 (10,93 Mo)Szczureqfull size jpeg
8 decembre de 2014 a 15.36Miniatura per la version del 8 decembre de 2014 a 15.361 280×1 256 (847 Ko)JmencisomUser created page with UploadWizard

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