NGC 6540 (Lithuanian Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 6540" in Lithuanian language version.

refsWebsite

Global rank Lithuanian rank

5,388^th place

1,694^th place

1books.google.com

3^rd place

13^th place

low place

low place

books.google.com

Steve O'Meara (2007), Herschel 400 Observing Guide, Cambridge University Press, p. 240, ISBN 978-0-521-85893-9

cseligman.com

Courtney Seligman. NGC 6540 (= OCL 11). Celestial Atlas. Nuoroda tikrinta 2021-07-11.

seds.org

spider.seds.org

NGC 6540. SEDS. Nuoroda tikrinta 2021-07-10