Category:Definitions/Terrestrial Colatitude

This category contains definitions related to Terrestrial Colatitude.
Related results can be found in Category:Terrestrial Colatitude.

Let $J$ be a point on Earth's surface that is not one of the two poles $N$ and $S$.

Let $\phi$ denote the latitude of $J$.

The (terrestrial) colatitude of $J$ is the (spherical) angle $90 \degrees - \phi$, that is:

if $J$ is in the northern hemisphere of Earth, the colatitude is the (spherical) angle $\sphericalangle NOJ$

if $J$ is in the southern hemisphere of Earth, the colatitude is the (spherical) angle $\sphericalangle SOJ$.