Hi all, First, many thanks at all for replays. Due to the different interpretations of the field of the suspect star I Have posted the chart of Megastar program in http://digilander.iol.it/infosis/homepage/suspectnova.html The arrow show the star suspect in my images. The Megastar labeled those stars as GSC 488:2529 13.5/0.4 and GSC 488:2698 13.0/0.4 The brigth star at left is GSC 488:2535 and at rigth GSC 488:2353. To comparison the chart with my image you must rotate the image ~10°. The suspect is not close to X Aql Note: The time interval beetwen the two images is ~5 minutes. Looking well the two images seem infact that there is a shift of the object, but is not clear. Also, my interpretation of the stars position can to be not exact The suspect star can to be another of the faint stars near GSC 488:2529 visibles on DSS I and II image. Regards, Toni Scarmato