Tool to find the point on the other side of the Earth (Antipodal Coordinates). Two points are said to the antipodes if they are diametrically opposite on a sphere.
Antipodal Coordinates - dCode
Tag(s) : Geography
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Antipodal Coordinates
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Tool to find the point on the other side of the Earth (Antipodal Coordinates). Two points are said to the antipodes if they are diametrically opposite on a sphere.
Answers to Questions
What is an antipodal point?
Two points are called antipodal if they are at two opposite points on a circle or a sphere. They are also said to be diametrically opposed or that they are the most distant points of each other on a spheroid.
Example: On Earth, the north pole and the south pole are antipodes.
Example: The antipodes of France is near New-Zealand.
The Earth is assimilated to a sphere, but in practice a more accurate model would be a spheroid (normal ellipsoid) or a geoid.
How to calculate antipode?
From the coordinates on a sphere, take the opposite value of the latitude (which is to put or remove a minus sign -), and remove or add 180 to the longitude (to keep it in the interval [-180; +180]).
Example: The \( -12.345, 67.890 \) coordinates have for antipode \( 12.345, -112.11 \)
From 3D Cartesian coordinates, take the opposite of each component (x, y, z) ie (-x, -y, -z)
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