The NexStar 4SE is a four inch telescope from Celestron. The 4SE includes a hand held remote control and finder sight which can locate and focus on over 40,000 objects around the night sky. Included is Celestrons excellent The Sky software helps find and locate distant objects and educate users on various aspects of astronomy. The easy to align setup means you can align the telescope on just three bright objects. The electric motors will then turn the Celestron 4SE and point it directly to the objects you wish to view which can be selected from the forty thousand database.