NGC 6839 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 6839" in Polish language version.

refsWebsite

Global rank Polish rank

69^th place

224^th place

low place

2,148^th place

2,069^th place

8,256^th place

1haroldcorwin.net

low place

low place

887^th place

766^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.).

caltech.edu

ned.ipac.caltech.edu

NGC 6839 w NASA/IPAC Extragalactic Database (ang.)

cseligman.com

Courtney Seligman: NGC 6839. Celestial Atlas. [dostęp 2014-09-18]. (ang.).

haroldcorwin.net

Harold G. Corwin Jr.: NGC 6839. [w:] Notes on the NGC objects, particularly those missing, misidentified, or otherwise unusual [on-line]. 2019-05-16. [dostęp 2019-07-21]. (ang.).

usp.br

astro.iag.usp.br

Wilton Dias et al.: Catalog of Optically Visible Open Clusters and Candidates. Departamento de Astronomia, 2014-05-24. [dostęp 2014-09-18].