ان‌جی‌سی ۱۹۸۱ (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "ان‌جی‌سی ۱۹۸۱" in Persian language version.

refsWebsite

Global rank Persian rank

887^th place

842^nd place

1^st place

low place

1,342^nd place

1,126^th place

5,388^th place

3,712^th place

low place

caltech.edu

"NGC1981: The often-overlooked open cluster in Orion". Eye on the sky. December 22, 2013. Archived from the original on 6 December 2017. Retrieved 27 November 2017.

"NGC1981: The often-overlooked open cluster in Orion". Eye on the sky. December 22, 2013. Archived from the original on 6 December 2017. Retrieved 27 November 2017.