: The comet appears in the sky. The sky is everything
: within sight of the person looking above. If it
: doesn't matter if the comet is visible, then it would
: always be present, so to speak, and it only becoming
: visible once every millinia is obsolete.
I'd have to agree. This is fantasy we're talking about; the comet is a Sign, not a chunk of ice and rock on a highly eccentric orbit. All that matters is if it can be seen by the populace looking at it.
That said, we should remember that the Myth II manual has the comet "heralding Balor's arrival"--apparently even before he torched Muirthemne--even though the TFL narrator doesn't comment on it until Balor's about to be defeated. To my mind that suggests that the comet moves through the sky; it became visible to the East when Balor started rampaging there, and over the space of fifty years or so drifted to the West to be present when Alric rose to prominence and finished Balor. Sort of like Wyrd's spotlight on the most intense action playing at the moment. :-)
So conceivably Connacht could have been born under the comet when it was visible (or bright) only in Gower and farther east...as he moved west and prepared for a showdown with the Levellers, the comet gradually followed him.
--SiliconDream