Messier 18 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Messier 18" in Polish language version.

Last modified: 07:51:00, 3 January 2026 (UTC)

Ref.Un. Ref.Website

Global rank Polish rank

942^nd place

1,015^th place

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

messier.seds.org

Hartmut Frommert, Christine Kronberg: Messier 18. [w:] The Messier Catalog [on-line]. Students for the Exploration and Development of Space (SEDS), 2007-08-21. [dostęp 2015-11-09]. (ang.).