The geographic North and South Poles are the points representing the earth's axis and about which it rotates. The Geomagnetic Poles are the points where the earth's magnetic lines of force converge. The north and south geomagnetic poles are both some distance from the geographic poles.
magnetic variation
It is magnetic north (not geographical north), which is the north on a magnetic compass.
True. Declination is the angular difference between true north (the direction of the North Pole) and magnetic north (the direction a compass points towards).
Approximately 5000 years ago, magnetic north and geographic north were not aligned as they are today. The difference between the two, known as magnetic declination, would have varied depending on the specific location, but it could have been several degrees. This variation is due to changes in the Earth's magnetic field over time.
The magnetic declination in San Diego, California is approximately 12 degrees east, which means there is a 12 degree difference between true north and magnetic north in that area.
the magnetic north pole moves while the geographic north pole stays in the same place
magnetic variation
There is a general geographical difference, called magnetic declination. In addition, there may be differences that arise locally, as a result of nearby objects that attract a magnet, which is called magnetic deviation. Related links are given below.
magnetic variation
It is magnetic north (not geographical north), which is the north on a magnetic compass.
Magnetic declination or variation.
A magnetic meridian is a line passing through a location connecting its magnetic north and south poles, while a geographical meridian is a line passing through a location connecting its geographic north and south poles. The magnetic meridian is affected by the Earth's magnetic field, while the geographical meridian is based on the Earth's rotation.
A magnetic compass points towards the magnetic north pole, not the geographical north pole. The magnetic north pole is located slightly offset from the geographical north pole due to the Earth's magnetic field, which changes over time. Additionally, local magnetic variations can also affect the accuracy of a magnetic compass.
True. Declination is the angular difference between true north (the direction of the North Pole) and magnetic north (the direction a compass points towards).
It is measured exactly the same in the Southern hemisphere (no difference between the two hemispheres). It is the difference between magnetic north and true north and it varies all over the globe. Magnetic declination (also called magnetic variation) is positive when magnetic north is east of true north (clockwise) and it is negative when magnetic north is west of true north (anti-clockwise).
Approximately 5000 years ago, magnetic north and geographic north were not aligned as they are today. The difference between the two, known as magnetic declination, would have varied depending on the specific location, but it could have been several degrees. This variation is due to changes in the Earth's magnetic field over time.
The magnetic declination in San Diego, California is approximately 12 degrees east, which means there is a 12 degree difference between true north and magnetic north in that area.