NGC_198
NGC_198
Thực đơn
NGC_198Liên quan
Tài liệu tham khảo
WikiPedia: NGC_198 http://cseligman.com/text/atlas/ngc1a.htm#198 http://ned.ipac.caltech.edu/cgi-bin/objsearch?objn... http://spider.seds.org/ngc/revngcic.cgi?NGC198 http://server1.wikisky.org/starview?object=NGC+198 http://www.wikisky.org/?object=NGC+198 http://www.wikisky.org/?object=NGC+198&img_source=... http://www.wikisky.org/?object=NGC+198&img_source=... http://www.wikisky.org/?object=NGC+198&img_source=... http://www.wikisky.org/?object=NGC+198&img_source=... http://www.wikisky.org/?object=NGC+198&img_source=...