Given the fact that the Magi found the Christ child because of an astrological (star)I don't think its that surprising to hear religious persons, inculding Christians, recognizing the significance of astrology. I am both a devoted Christian and a believer in astrolgy, as are many others.

As to the physical date of stars and the physical incarnation of Christ as Jesus, from a logical point of view, there does not need to be a linear progression of this one versus that one "first" for the two to be theoretically linked.

I have no idea what Comet Holmes is all about, but I too find it compelling.