Aligning the Astronomical Observations of the Maria Valtorta writings with the birth date of the Virgin Mary as given in Medjugorje

In this short paper we analyse the writings of Maria Valtorta that relate to the Birth of the Virgin Mary and extract descriptions relating to the astronomical and environmental features which the author allegedly witnesses. Using planetary software we attempt to align these observations with August 5th 17BC; the date given for the Birth of the Virgin Mary by the alleged Medjugorje visionaries. Using data from the Valtorta vision relating to both the unusual weather conditions and the position of a rainbow over Mount Hermon; we unexpectedly found that the bearing and elevation of the Moon as observed from Nazareth on the Medjugorje date could indeed create the conditions suitable for an observable Lunar Rainbow rising from the peak of Mount Hermon. We found at no time in August of 16BC could the Sun have been responsible for the Valtorta rainbow.