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diff --git a/kstars/kstars/tools/modcalcprec.h b/kstars/kstars/tools/modcalcprec.h
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+/***************************************************************************
+                          modcalcprec.h  -  description
+                             -------------------
+    begin                : Sun Jan 27 2002
+    copyright            : (C) 2002 by Pablo de Vicente
+    email                : vicente@oan.es
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef MODCALCPREC_H
+#define MODCALCPREC_H
+
+#include "modcalcprecdlg.h"
+
+/**
+  * Class which implements the KStars calculator precession module. Precesses
+  * coordinates between different epochs. Conversions are performed assuming
+  * that coordinates are in the FK5 system. For example the conversion between
+  * B1950 and J2000 is not exact. 
+  *
+  * Inherits modCalcPrecDlg
+  *@author Pablo de Vicente
+	*@version 0.9
+  */
+
+class QString;
+class dms;
+class SkyPoint;
+
+class modCalcPrec : public modCalcPrecDlg  {
+
+Q_OBJECT
+public: 
+	modCalcPrec(QWidget *p, const char *n); 
+	~modCalcPrec();
+	SkyPoint precess (dms ra0, dms dec0, double e0, double ef);
+
+public slots:
+	void slotClearCoords (void);
+	void slotComputeCoords (void);
+	void slotRaCheckedBatch(void);
+	void slotDecCheckedBatch(void);
+	void slotEpochCheckedBatch(void);
+	void slotTargetEpochCheckedBatch(void);
+	void slotInputFile(void);
+	void slotOutputFile(void);
+	void slotRunBatch(void);
+
+private:
+	SkyPoint getEquCoords(void);
+	QString  showCurrentEpoch(void);
+	double setCurrentEpoch(void);
+	double getEpoch (QString eName);
+	void showEquCoords ( SkyPoint sp );
+	void processLines( QTextStream &istream );
+
+};
+
+#endif