Free Access
Fig. 4
Top view of the system. For a lunar eclipse, the moon is in the shadow of the planet, and the orbital phases must be equal: ϑ = φ modulo 2π. For a planetary eclipse, with the planet in the shadow of the moon, the orbital phases are opposite: ϑ = φ + π modulo 2π.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.