NGC 6554 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 6554" in Polish language version.

refsWebsite

Global rank Polish rank

1web.archive.org

1^st place

1^st place

low place

2,148^th place

1haroldcorwin.net

low place

low place

69^th place

224^th place

arxiv.org

A.L. Tadross. A catalog of 120 NGC open star clusters. „Journal of The Korean Astronomical Society”. 44 (1), 2011. (ang.).

cseligman.com

Courtney Seligman: NGC 6554. Celestial Atlas. [dostęp 2014-09-17]. (ang.).

haroldcorwin.net

Harold G. Corwin Jr.: NGC 6554. [w:] Notes on the NGC objects, particularly those missing, misidentified, or otherwise unusual [on-line]. 2017-06-20. [dostęp 2017-10-23]. (ang.).

web.archive.org

Wilton Dias et al.: Catalog of Optically Visible Open Clusters and Candidates. Departamento de Astronomia, 2016-01-28. [dostęp 2017-10-23].