# Longitude
The **Longitude** function obtains the longitude of a point.
The input column must be a valid location within the [Geographic Coordinate System.](https://en.wikipedia.org/wiki/Geographic_coordinate_system)
### Syntax
```
Longitude(point)
```
The function argument is:
point
Required
A valid point value that can be located on the Earth's sphere; must comply with the Geographic Coordinate System. The function does not support other coordinate types, such as lines, polygons, and so on.
### Example
```
Longitude([Coordinates])
```
The function **Longitude** extracts the latitude of a point from the **Coordinate** column:
