Errors of fact?
I’ve never seen the point of associating Nero with the Anti-christ.
If the point of Revelation, as many believe, is to give comfort to first generation Christians undergoing persecution at the hands of Romans and apostate Jews, then the identification makes perfect sense. The time texts give us some hint of that, “The Revelation of Jesus Christ, which God gave Him to show His servants--things which must shortly take place.” (v.1) “Blessed is he who reads and those who hear the words of this prophecy, and keep those things which are written in it; for the time is near.(v. 3)
But there were no signs in the heavens back then, no earth shaking (about 130 years prior yes), the only thing listed was a comet and Josephus called it what it was just a comet. But that didn’t even show up until later that year.
The “sun, moon, and stars” image is a reference back to Isaiah 13:10, the temporal punishment of ancient Babylon. I believe there is much in Josephus to confirm the images in the Olivet Discourse and Revelation. Remember, these are images and symbols, spiritual pictures of reality.
For example, regarding the Roman catapult stones, Josephus wrote:
"...Now, the stones that were cast were of the weight of a talent, and were carried two furlongs and farther. ...As for the Jews, they at first watched the coming of the stone, for it was of a white color, and could therefore not only be perceived by the great noise it made, but could be seen also before it came by its brightness; accordingly the watchmen that sat upon the towers gave them [the Jewish rebels] notice when the engine was let go, and the stone came from it, and cried aloud in their own country language, "THE SON COMETH:" so those that were in its way stood off, and threw themselves down upon the ground: by which means, and by their thus guarding themselves, the stone fell down and did them no harm. But the Romans contrived how to prevent that by blacking the stone, [an effective action by the Romans] who then could aim at them with success, when the stone was not discerned beforehand, as it had been till then; and so they destroyed many of them at one blow." (Book 5 Chapter 6)People have puzzled over the phrase “the son cometh”. See Rev. 16:21.