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Messier_3 Tham khảoLiên quan
Messier 3 Messier 30 Messier 34 Messier 39 Messier 37 Messier 32 Messier 36 Messier 35 Messier 31 Messier 33Tài liệu tham khảo
WikiPedia: Messier_3 http://www.darkatmospheres.com/astro/gallery/clust... http://www.deepskyvideos.com/videos/messier/M3_glo... http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=... //hdl.handle.net/2152%2F34371 http://gclusters.altervista.org/cluster_4.php?ggc=... //arxiv.org/abs/1001.4289 //arxiv.org/abs/1004.2255 //arxiv.org/abs/1008.2755 //doi.org/10.1016%2FS1384-1076(99)00014-7 //doi.org/10.1088%2F0004-6256%2F139%2F2%2F476