When the plumb line exactly intersected both stars, one about 10 degrees above the invisible pole and the other 10 degrees below it, the sight line to the horizon would aim directly north.

BBC: Pyramids lined up with the stars

Gary Wilson battled to 19 but played for an off-spinner from Harbhajan Singh when instead the ball held its line and uprooted the off pole.

BBC: Ruthless India outclass Ireland

After Sunday's 3-1 victory over Blackpool, Wenger said the Pole was "not far away" and he is expected to go straight into the starting line-up.

BBC: Wojciech Szczesny

An Egyptian astronomer would have held up a plumb line and waited for the night sky to slowly pivot around the unmarked pole as the Earth rotated.

BBC: Pyramids lined up with the stars