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Date: 2012-07-10 11:10:04Gérard de Vaucouleurs Galaxy morphological classification Astrophysics Edwin Hubble Irregular galaxy Galaxy Large Magellanic Cloud Magellanic spiral Yerkes Observatory Astronomy Extragalactic astronomy Julien Peridier | Add to Reading ListSource URL: www.nasonline.orgDownload Document from Source WebsiteFile Size: 121,14 KBShare Document on Facebook |