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NGC 20 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 20" in Polish language version.

Last modified:

Ref.Un. Ref.Website
Global rank Polish rank
51seds.org
942nd place
1,015th place
21cseligman.com
1,720th place
239th place
11caltech.edu
240th place
826th place
11u-strasbg.fr
163rd place
67th place
11haroldcorwin.net
low place
2,592nd place

caltech.edu (Global: 240th place; Polish: 826th place)

ned.ipac.caltech.edu

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

  • Courtney Seligman: NGC 20. Celestial Atlas. [dostęp 2014-07-24]. (ang.).

haroldcorwin.net (Global: low place; Polish: 2,592nd place)

  • Harold G. Corwin Jr: NGC 6 = NGC 20. [w:] Notes on the NGC objects, particularly those missing, misidentified, or otherwise unusual [on-line]. 2017-06-20. [dostęp 2017-08-31]. (ang.).

seds.org (Global: 942nd place; Polish: 1,015th place)

spider.seds.org

  • NGC 20 w serwisie SEDS.org (Revised NGC and IC Catalog) (ang.)

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

simbad.u-strasbg.fr