era.seps.md

eraSeps

rv = ERFA.seps(al, ap, bl, bp)

Angular separation between two sets of spherical coordinates.

Given:

   al     double       first longitude (radians)
   ap     double       first latitude (radians)
   bl     double       second longitude (radians)
   bp     double       second latitude (radians)

Returned (function value):

          double       angular separation (radians)

Called:

   eraS2c       spherical coordinates to unit vector
   eraSepp      angular separation between two p-vectors

This revision: 2021 May 11

Copyright (C) 2013-2021, NumFOCUS Foundation. Derived, with permission, from the SOFA library.