Free Access

Table 1

Numbers N(qmin) of test objects with minimum perihelion distances qmin smaller than the listed, current aphelion distances Qpl of the terrestrial planets.

Planet Qpl (au) N(qmin)

Mercury 0.467 7957
Venus 0.728 15 932
Earth 1.017 27 453
Mars 1.666 57 008

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.