Orbital period (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Orbital period" in English language version.

refsWebsite

Global rank English rank

4,660^th place

5,295^th place

3^rd place

513^th place

537^th place

low place

75^th place

83^rd place

astronomycafe.net (Global: low place; English: low place)

Oliver Montenbruck, Eberhard Gill (2000). Satellite Orbits: Models, Methods, and Applications. Springer Science & Business Media. p. 50. ISBN 978-3-540-67280-7.
Hannu Karttunen; et al. (2016). Fundamental Astronomy (6th ed.). Springer. p. 145. ISBN 9783662530450. Retrieved December 7, 2018.