In the present work, we try to explain the discordances regarding the secular advances of the node of Venus and the perihelion of Mars. We assume that these two discordances concerning the two neighboring planets of the Earth can be explained by an increase of the astronomical unit (AU), resulting from the hypothesis of the Allais eclipse effect. In a previous article [1], we supposed that the eclipses were the causes rather than the witnesses of the withdrawal of the Moon from the Earth and, at the same time, of the remoteness of the Earth-Moon system from the sun. The remoteness of the Earth-Moon system increases the AU, i.e. the Earth-Sun distance, of about 10 meters per century, which approaches the Earth from Mars and moves it away from Venus. Becoming closer from Mars contributes to the advance of the perihelion of Mars that is 8" per century and the distancing of Venus helps to the advance the Venus node that is 10" per century (value of the advances expressed in arcseconds).