Index: trunk/doc/release.2015/inputs/astro.sty
===================================================================
--- trunk/doc/release.2015/inputs/astro.sty	(revision 40565)
+++ trunk/doc/release.2015/inputs/astro.sty	(revision 40717)
@@ -97,4 +97,5 @@
 
 % Specific astrophysical symbols
+\newcommand\mathdegree{^{\circ}}
 \newcommand\degree{$^{\circ}$}
 \newcommand\degrees{$^{\circ}$}