Excuse me, is there such a celestial phenomenon as "purple MSI"? The Emperor Star (Purple Star) is not near the ecliptic.

In ancient times, such records were considered ominous. To tell the truth, Mars can't be near Polaris. I think the ancients said this because Mars is closer to Polaris than usual. This should happen around the winter solstice, and then it happens that Mars rushes to the sun, and then Mars is at the maximum inclination of the ecliptic. So the three requirements add up, and the probability is not very high.