"The henges are arranged in a bent line, very like (perhaps 5% error) the belt stars (and like the Giza pyramids)"

The error is far less than 5%. More like 0.2%.
http://www.themodernantiquarian.com/post/25391

But we've talked about this before. A close match of just three points, no matter how close, doesn't give a clue to whether it's deliberate or chance.