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NGC 6561 (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 6561" in German language version.

refsWebsite
Global rank German rank
1caltech.edu
887th place
744th place
1univie.ac.at
2,529th place
302nd place
1docdb.net
low place
low place
1cseligman.com
low place
4,622nd place

caltech.edu

ned.ipac.caltech.edu

cseligman.com

docdb.net

  • Auke Slotegraaf: NGC 6561. Deep Sky Observer's Companion, abgerufen am 15. September 2016 (englisch).

univie.ac.at