NGC 998 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 998" in Polish language version.

refsWebsite

Global rank Polish rank

low place

2,148^th place

887^th place

766^th place

caltech.edu

ned.ipac.caltech.edu

NGC 998 w NASA/IPAC Extragalactic Database (ang.)

cseligman.com

Courtney Seligman: NGC 998. [w:] Celestial Atlas [on-line]. [dostęp 2017-10-22]. (ang.).