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starmap
I've been looking at the starmap again and I'm wondering if maybe it's not the surrounding stars that matter so much...
Ok, I still think the glyph's center is almost pointing at Polaris. That said, I don't think it's what is being centered by the glyph (that is to say what it's pointing at in the center of it's mass) so much as what it overlaps.
Look at the starmap image. If you look at the lines of the glyph, you'll see that at least 7 if not 10 of the stars in the starmap are on or adjacent to the lines that make up the glyph. I'm going to investigate this further as I have time.