Nope, this is not what I am talking about. I am not talking about anything supernatural at all.
I am talking about regular old astronomy: the planets, sun, moon, and their positions relative to the stars.
The whole “Star of Bethlehem” business and “three magi from the East” had ASTROLOGICAL significance. It was not that there were missing days or new planets or anything supernatural. It was, rather, that the natural lineup of the planets and stars during that particular period had immense tension in them from an astrological standpoint, and the ancients - especially Middle Eastern “magi” - were very much into that sort of thing.
What this astronomer did was run the planet and star positions at various likely times in the 3-2 BC through 35 AD timeframe, and found the behavior of Jupiter, moving in various constellations (from the Lion, to the Virgin, conjunction with Venus, etc.) that would have produced a particularly bright “star” at a certain point in the trajectory. He shows how on April 3, 33 AD, a year in which Passover fell on the Sabbath, the Moon rose in full eclipse. A fully eclipsed moon is, of course, an eerie red.
The Gospels recall the crucifixion of Jesus on a Friday before Passover, and that the moon ran red with blood that evening. Well, on Friday, Passover Eve, April 3, 33 AD, the moon rose in full eclipse, and would have appeared as a rising blood-red moon in that part of the world.
There is nothing supernatural about what this astronomer is doing with his calculations of the star positions. The various planet positions DID happen, and (assuming he did his math right) the Moon DID rise in full eclipse on Friday, April 3, 33 AD. It was the astrological significance that superstitious people standing on the ground perceiving these natural phenomena that gave impetus to religion. The phenomena were real. It’s their interpretation that gives rise to faith or the lack thereof.