Celestron NexStar 11-GPS Telescope with Tripod.

The NexStar 11 GPS is the culmination of years of engineering research and development delivering the ultimate instrument in Go-To technology and astro imaging. This large aperture telescope with carbon fiber tube is the first instrument of its kind to boast an integrated Global Positioning System and electronic compass, combined with the NexStar system, which makes this the most advanced telescope on the market.It's so advanced that as you turn it on, the integrated GPS and compass system automatically pinpoints your exact location and points to your first alignment star. No need to enter the date, time, longitude and latitude or even know the position of north.Also our advanced database with filter limits that allows you to customize the many database object lists. With the "filter limits" feature the NexStar database will display only those objects that are above the horizon for your exact date, time and location. Or, if the seeing conditions are bad, you can filter out objects below a certain altitude above the horizon. So as you scroll through the database lists of objects, only objects within the altitude limits you set will be displayed on the hand control. No other telescope on the market offers this advanced and useful feature.The NexStar 11 GPS is the most advanced, easiest to use telescope we've ever designed. It's the ultimate large aperture, portable telescope.