NGC 1997 (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 1997" in Portuguese language version.

Last modified: 08:41:52, 19 July 2021 (UTC)

Ref.Un. Ref.Website

Global rank Portuguese rank

163^rd place

238^th place

u-strasbg.fr (Global: 163^rd place; Portuguese: 238^th place)

simbad.u-strasbg.fr

«SIMBAD Astronomical Database». Results for NGC 1997. Consultado em 22 de julho de 2012