NGC 2257 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 2257" in Polish language version.

refsWebsite

Global rank Polish rank

3,034^th place

1,600^th place

low place

2,148^th place

cseligman.com

Courtney Seligman: NGC 2257. [w:] Celestial Atlas [on-line]. [dostęp 2015-03-13]. (ang.).

eso.org

An Ancient Cluster of Stars Against a Stunning Background. ESO, 2010-11-15. [dostęp 2015-03-13]. (ang.).