Definitions for "Dobsonian telescope"
a Newtonian mounted on a cradle rather than a tripod
a special kind of Newtonian, with a simple but very efficient mounting that distinguishes it from other Newtonians
A Newtonian reflector telescope that sits in a special type of mount, called a Dobonsian mount. Dobsonian mounts sit on the ground and have a swiveling base. Dobsonian mounts are very stable, usually are made of wood, and reduce the cost of the telescope.
an excellent instrument for casual optical observation and can be set up very quickly