NGC_1992
NGC_1992
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NGC_1992Liên quan
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WikiPedia: NGC_1992 http://cseligman.com/text/atlas/ngc19a.htm#1992 http://ned.ipac.caltech.edu/cgi-bin/objsearch?objn... http://spider.seds.org/ngc/revngcic.cgi?NGC1992 https://dso-browser.com/deep-sky/2917/ngc-1992/gal...