NGC_1984
NGC_1984
Thực đơn
NGC_1984Liên quan
Tài liệu tham khảo
WikiPedia: NGC_1984 http://cseligman.com/text/atlas/ngc19a.htm#1984 http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?... http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC... http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC... http://spider.seds.org/ngc/ngc.cgi?1984 http://spider.seds.org/ngc/revngcic.cgi?NGC1984 http://server1.wikisky.org/starview?object=NGC+198... http://www.wikisky.org/?object=NGC+1984 http://www.wikisky.org/?object=NGC+1984&img_source... http://www.wikisky.org/?object=NGC+1984&img_source...