Messier 12
Messier 12
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Messier 12Liên quan
Messier 87 Messier 5 Messier 77 Messier 102 Messier 15 Messier 110 Messier 4 Messier 100 Messier 74 Messier 95Tài liệu tham khảo
WikiPedia: Messier 12 http://www.universetoday.com/am/publish/past_globu... http://simbad.u-strasbg.fr/Simbad http://venus.mporzio.astro.it/~marco/gc/cluster_4.... http://www.eso.org/outreach/press-rel/pr-2006/pr-0... http://www.seds.org/messier/m/m012.html http://server1.wikisky.org/starview?object=Messier... http://www.wikisky.org/?object=Messier+12 http://www.wikisky.org/?object=Messier+12&img_sour... http://www.wikisky.org/?object=Messier+12&img_sour... http://www.wikisky.org/?object=Messier+12&img_sour...