For #510, note that hadec() ignores refraction

skyfielders · Jan 17, 2021 · 650c5f2 · 650c5f2
1 parent d0cc250
commit 650c5f2
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/skyfield/positionlib.py b/skyfield/positionlib.py
@@ -286,6 +286,9 @@ def hadec(self):
         different than the declination returned by ``radec()`` if you
         have loaded a :ref:`polar motion` file.
 
+        The coordinates are not adjusted for atmospheric refraction near
+        the horizon.
+
         """
         R = framelib.itrs.rotation_at(self.t)
         r = mxv(R, self.position.au)