A few months ago, Tim Daw, a steward at the Wiltshire monument, revealed that he had discovered an alignment, which, up to that point, had not been known.
It involved a line of stones at 80 degrees to the axis of the monument,
And at 9.26pm on Saturday, he says his theory was shown to be correct.
Tim, who tweeted a theory-proving picture, told the BBC: “It wasn’t the best evening for a sunset picture as a bank of cloud came in at the wrong moment but it was close enough to prove the point.
“I put forward this theory. I said ‘this stone, the sun will set along its back’ (on) Midsummer. Yes it did.”