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Date: 2012-03-19 15:23:08Leo constellation Seyfert galaxies Interacting galaxies NGC Active galactic nucleus Sloan Digital Sky Survey Galaxy Cosmic distance ladder Pea galaxy Astronomy Extragalactic astronomy Peculiar galaxies | E-Submission (File Reference: RANL-84VNM7)Add to Reading ListSource URL: swift.gsfc.nasa.govDownload Document from Source WebsiteFile Size: 588,65 KBShare Document on Facebook |