I saw a program on CBN recently about the real cause of the Star of Bethlehem. Thru the use of modern computer technology and maps of the stars, they can tell what the night sky looked like on any given day in history, basically. Check it out at www.bethlehemstar.net - very good read!!
Here are the 4 main pages: Setting the Stage The Starry Dance The Day of the Cross What Does This Mean
Real cause - meaning that's the way God intended the sky to look at that exact point in time. He set all the stars in place from the beginning....go back to Genesis 1. The Star of Bethlehem wasn't some mythical thing that sounds nice in stories. Maybe 'real cause' isn't the perfect way to describe the above documentary, but I don't think it's at all inaccurate. Out of curiosity, did you even look at the links?