Skywatcher 8" 200P Dobsonian TelescopeThe Ultimate Light Gatherer The Dobsonian telescopes are named after John Dobson, an amateur astronomer who designed a very simple but effective telescope, where the key factor is a large aperture for little money. His idea was to mount a Newton telescope on an easy to use alt azimuth mount that does not need time consuming alignments. The Sky Watcher 8 Dobsonian is a large aperture Newtonian reflector telescope with f 6 focal ratio, make it ideal for