NGC 291 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 291" in Polish language version.

Last modified: 14:01:09, 4 December 2022 (UTC)

Ref.Un. Ref.Website

Global rank Polish rank

21cseligman.com

1,720^th place

239^th place

163^rd place

67^th place

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

Courtney Seligman: NGC 291. [w:] Celestial Atlas [on-line]. [dostęp 2014-03-02]. (ang.).

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

simbad.u-strasbg.fr

NGC 291 w bazie SIMBAD (ang.)