"This is an advanced version of iOptron's flagship product; the revolutionary GoToNovaTM computerized control system that is one of the most technologically advanced automated tracking systems available on the market today. With a database of over 50,000 celestial objects and 256 user-defined objects, this GoToNovaTM computerized control system allows even amateur astronomers to becomemasters of the night sky while being a perfect fit for the serious astronomer aswell. Using the easy-to-use hand controller and its large LCD screen, you can easily set up the telescope and select where you want to go with the very friendly user-interface. The control system also allows you the user to slew the telescope at 9 different drive speeds, keeping the object within the telescope'sviewfinder for as long as you wish. The most easy to understand controller on the market The GoToNovaTM Controller is much easier to use than other similar products. Thehand controller is more intuitive with menu categories better organized. It alsohas a larger LCD screen with more lines of content compared with the competition. Using the easy-to-use hand controller and its large LCD screen, youcan easily set up your telescope and select where you want to go. More precise speed control for viewing objects The control system also allows you to slew the telescope at 9 different drive speeds, keeping the object within the telescope's viewfinder for as|130,000 object database with 256 user-defined objects|8 line large screen LCD|User friendly interface|Comes standard on the PR-series"