Index: /trunk/MagicSoft/Mars/Changelog
===================================================================
--- /trunk/MagicSoft/Mars/Changelog	(revision 3504)
+++ /trunk/MagicSoft/Mars/Changelog	(revision 3505)
@@ -23,4 +23,8 @@
    * mastro/MObservatory.[h,cc]
      - remove bugs in RotationAngle(theta, phi, sin, cos)
+       replaced
+         cos = sinl + cosl*cosp /denom;
+       by
+         cos = (sinl - cosl*cosp) /denom;