NGC 2440 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 2440" in Polish language version.

refsWebsite

Global rank Polish rank

low place

2,148^th place

low place

2,731^st place

apod.pl (Global: low place; Polish: 2,731^st place)

NGC 2440 w serwisie APOD: Astronomiczne zdjęcie dnia

cseligman.com (Global: low place; Polish: 2,148^th place)

Courtney Seligman: NGC 2440. [w:] Celestial Atlas [on-line]. [dostęp 2015-03-16]. (ang.).