Skywatcher 12" 300P Dobsonian Telescope ALLOW 3 DAYS FOR STORE PICK UP.THIS ITEM IS STORED IN OUR SUPPLIERS WAREHOUSE. ALLOW 3 DAYS FOR STORE PICK UP. The 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 12 Dobsonian is a