How quickly to find a star or stars in the sky depends on clearness of the sky, whether conditions, knowledge level of a planisphere and on quality of an astronomical telescope. StellarWindow seems to ease us quickly to find a star by putting up a flat panel screen (actually tablet pc ) with which an USB type sensor is connected and StellerWindow software is installed. This fantasy animation video well present on how to use it. According to the supplier, 3 TEC , the package price which includes the software package and the USB device but excludes the tablet PC, is Japanese Yen25,000.- plus consumption tax within Japan. Source: 3 TEC Corporation & its groups' page 3/6/09