The celestron nexstar 130 slt computerised telescope has a high quality 130 mm reflector and fully computerised altazimuth mount the nexstar 130 slts 5 primary mirror gives additional light gathering capabilities because of the newtonian design the mirror gives fully color corrected views that are best suited for astronomical use the nexstar 130 slt comes with a fully computerised hand control which gives you the ability to automatically slew to any of its 4 000 plus objects including