Index: trunk/ppSim/src/ppSimMakeStars.c
===================================================================
--- trunk/ppSim/src/ppSimMakeStars.c	(revision 18011)
+++ trunk/ppSim/src/ppSimMakeStars.c	(revision 25760)
@@ -61,5 +61,5 @@
 	if (!status) {
 	    refMag = brightMag;
-	    refSum = 1;
+	    refSum = starsDensity * xSize * ySize * PS_SQR(scale * 180.0 / M_PI);
 	}
     } else {