NGC_13
NGC_13
Thực đơn
NGC_13Liên quan
NGC 13 NGC 1300 NGC 134 NGC 135 NGC 132 NGC 131 NGC 138 NGC 136 NGC 137 NGC 130Tài liệu tham khảo
WikiPedia: NGC_13 http://nedwww.ipac.caltech.edu/cgi-bin/nDistance?n... http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsear... http://messier.seds.org/more/m031_n206.html http://server1.wikisky.org/starview?object=NGC+13 http://www.wikisky.org/?object=NGC+13 http://www.wikisky.org/?object=NGC+13&img_source=D... http://www.wikisky.org/?object=NGC+13&img_source=H... http://www.wikisky.org/?object=NGC+13&img_source=I... http://www.wikisky.org/?object=NGC+13&img_source=I... http://www.wikisky.org/?object=NGC+13&img_source=R...