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NGC 689 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 689" in Polish language version.

Last modified:

Ref.Un. Ref.Website
Global rank Polish rank
11u-strasbg.fr
163rd place
67th place
11cseligman.com
1,720th place
239th place
11eps.harvard.edu
3,622nd place
564th place

cseligman.com (Global: 1,720th place; Polish: 239th place)

  • Courtney Seligman: NGC 689. [w:] Celestial Atlas [on-line]. [dostęp 2014-11-16]. (ang.).

eps.harvard.edu (Global: 3,622nd place; Polish: 564th place)

cbat.eps.harvard.edu

  • List of Supernovae. [w:] IAU Central Bureau for Astronomical Telegrams [on-line]. Międzynarodowa Unia Astronomiczna. [dostęp 2014-11-16]. (ang.).

u-strasbg.fr (Global: 163rd place; Polish: 67th place)

simbad.u-strasbg.fr