With the largest aperture of the Celestron CPC GPS line the CPC 1100 GPS Schmidt-Cassegrain telescope delivers the most light gathering power and a limiting magnitude of nearly 15. The CPC 1100 GPS takes full advantage of its vast database of thousands of NGC and Abell galaxies and provides a new level of detail to all your favorite deep sky objects.?Celestron CPC Telescopes are available in three aperture size choices:8 Inch CPC Schmidt-Cassegrain Telescope9.25 Inch CPC Schmidt-Cassegrain Telescope11 Inch CPC Schmidt-Cassegrain TelescopeThe Celestron 11-Inch CPC Schmidt-Cassegrain with StarBright XLT Coatings offers innovative technology that will allow you to look deep into space. This scope combines new SkyAlign alignment technology advanced engineering and a bold new design all at an affordable price.In fact Celestron's Professional Computerized (CPC) Series with revolutionary SkyAlign alignment technology redefines everything that amateur astronomers are seeking. They offer quick and simple alignment GPS unsurpassed optical quality ease of setup and use advanced ergonomics enhanced computerization and value for money. The 11-inch CPC truly has it all.The Celestron CPC Series includes an internal GPS receiver that automatically downloads the date and time from orbiting satellites pinpointing the telescope's precise location. This eliminates the need for you to input the date time longitude and latitude manually.Thanks to SkyAlign alignment is a breeze. Simply locate and manually point the telescope towards three bright celestial objects - even the moon and bright planets will work. Celestron's NexStar software technology will then model the night sky to determine the position of every star planet and celestial object above the horizon.Once aligned the remote hand control allows direct access to each of the celestial catalogs in its remarkably user-friendly database. The CPC's database contains more than 40000 celestial objects including Messier objects