Messier 99 (Norwegian Wikipedia)

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

refsWebsite

Global rank Norwegian rank

887^th place

996^th place

6^th place

42^nd place

1,342^nd place

3,068^th place

archive.org

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

nedipac.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

simbad.u-strasbg.fr

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