Messier 99 (Norwegian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Messier 99" in Norwegian language version.

Last modified: 22:28:46, 21 October 2021 (UTC)

Ref.Un. Ref.Website

Global rank Norwegian rank

240^th place

678^th place

163^rd place

876^th place

6^th place

26^th place

archive.org (Global: 6^th place; Norwegian: 26^th place)

R. W. Sinnott, red. (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation/Cambridge University Press. ISBN 0-933346-51-4.

caltech.edu (Global: 240^th place; Norwegian: 678^th place)

nedwww.ipac.caltech.edu

«NASA/IPAC Extragalactic Database». Results for NGC 4254. Besøkt 25. november 2006.
«Distance Results for MESSIER 099». NASA/IPAC Extragalactic Database. Besøkt 30. april 2010.

u-strasbg.fr (Global: 163^rd place; Norwegian: 876^th place)

simbad.u-strasbg.fr

«SIMBAD Astronomical Database». Results for NGC 4254. Besøkt 25. november 2006.