A magnetic compass, including the compasses on most smart phones, does not point to the North Pole, or even to the North Magnetic Pole. Instead, it points away from True North by an angle known as ...

We call this “map ... magnetic compass, there is some angular difference between the two points, which varies depending on where you are on the Earth. In Europe, this difference, known as ...

We call this “map and compass ... difference between magnetic and true north, which varies depending on where you are on the earth. In Europe, this difference, known as declination, is ...