Now I've discovered a major breakdown in the relationship between the story's chronology and the real-world astrological timing. It's a big screw-up, entirely my own error, and would probably add a couple of weeks, at least, to the time it takes me to finish the manuscript. I'm on the brink of throwing the ephemeris out the window and sticking with the sequence I've got. What kills me about that option is that it's possible to get the details right, and it's even possible for me to get the details right. I'm just not sure what the trade-offs would be in terms of time to completion or story logic if I do.
So, a poll:
How would it affect your experience as a reader of a story about an astrologer if all the astrology was impeccably correct?
How would it affect your experience as a reader of a story about an astrologer if all the astrology looked fine on the sentence level, but it was really arbitrary for the author's convenience.