NGC 1640 (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 1640" in German language version.

refsWebsite
Global rank German rank
887th place
744th place
5,388th place
1,327th place
1,342nd place
799th place
low place
4,622nd place

caltech.edu

ned.ipac.caltech.edu

cseligman.com

seds.org

spider.seds.org

u-strasbg.fr

simbad.u-strasbg.fr