Given the conjunction between Venus and Jupiter expected today (21 December 2020) and following on from my comment at the Masses over the weekend – considering not just one conjunction but four astronomical events from August 3BC to June 2BC which the Magi may have used to interpret the birth of the Messiah – below is a link to offer information for further reading about the Star of Bethlehem on the Vatican Observatory website:
Star of Bethlehem – Vatican Observatory Foundation Faith and Science (vofoundation.org)