Added support for reading Declination

MeadeAutostar497/AscomClasses/Telescope.cs

@@ -524,7 +524,7 @@ namespace ASCOM.MeadeAutostar497
         {
             get
             {
-                double declination = 0.0;
+                double declination = _telescopeController.Declination;
                 tl.LogMessage("Declination", "Get - " + utilities.DegreesToDMS(declination, ":", ":"));
                 return declination;
             }

MeadeAutostar497/Controller/ITelescopeController.cs

@@ -15,6 +15,7 @@ namespace ASCOM.MeadeAutostar497.Controller
         AlignmentModes AlignmentMode { get; set; }
         bool AtPark { get; }
         double Azimuth { get; }
+        double Declination { get; }
         void AbortSlew();
         void PulseGuide(GuideDirections direction, int duration);
         void Park();

MeadeAutostar497/Controller/TelescopeController.cs

@@ -320,7 +320,22 @@ namespace ASCOM.MeadeAutostar497.Controller
                 
                 return az;
             }
-        }       
+        }
+
+        public double Declination
+        {
+            get
+            {
+                var result = SerialPort.CommandTerminated(":GD#", "#");
+                //:GD# Get Telescope Declination.
+                //Returns: sDD* MM# or sDD*MM’SS#
+                //Depending upon the current precision setting for the telescope.
+
+                double az = DMSToDouble(result);
+
+                return az;
+            }
+        }
 
         public void AbortSlew()
         {