NGC_17
NGC_17
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NGC_17Liên quan
Tài liệu tham khảo
WikiPedia: NGC_17 http://cseligman.com/text/atlas/ngc0.htm#34 http://futurism.com/apotd-ngc-34/ http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsear... http://spider.seds.org/ngc/revngcic.cgi?NGC34 http://www.wikisky.org/?ra=0.18513888888889&de=-12...