angular_separation¶

astropy.coordinates.
angular_separation
(lon1, lat1, lon2, lat2)[source]¶ Angular separation between two points on a sphere.
 Parameters
 Returns
 angular separation
Quantity
[:ref: ‘angle’] orfloat
Type depends on input;
Quantity
in angular units, or float in radians.
 angular separation
Notes
The angular separation is calculated using the Vincenty formula [1], which is slightly more complex and computationally expensive than some alternatives, but is stable at at all distances, including the poles and antipodes.