I’ve never really understood why so much effort is put into trying to “explain” the Star of Bethlehem in the biblical nativity story. The latest paper in the Journal is a case in point. It goes to a lot of effort to show that a particular close flyby trajectory of a comet could briefly have a near-stationary apparent motion consistent with the text in Matthew. Well, lots of things “could” be, but this seems extremely unlikely and a such a close flyby of a small comet would probably not be particularly spectacular given the size of the coma and other physical characteristics.
More importantly, I presume no one is claiming a causal relationship between the arrival of this very unusual comet (or its previous departure from the Oort Cloud) and events occurring on Earth 2000 years ago.
I’m quite happy to settle for the first of the three categories noted in this paper that: “The story is regarded as embellished, perhaps as a myth or midrash created to make a theological point, meaning there was never any physical Star of Bethlehem”. To me, continuing to search for a physical “explanation” is as pointless as searching for Noah’s Ark.