Dobsonian telescope

American  

[dob-soh-nee-uhn] / dɒbˈsoʊ ni ən /

noun

1. a relatively inexpensive Newtonian telescope, suitable for visual but not photographic use, in which the tube assembly slips freely in the lower base.

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Etymology

Origin of Dobsonian telescope

After John Dobson, U.S. astronomer, its inventor; -ian

Example Sentences

At night, stargaze with the aid of their powerful Orion Dobsonian telescope with its 16” mirror located at this eco-conscious, restored estate.

From Washington Times

Just go and buy some binoculars or a small Dobsonian telescope and then develop your own interest that way.

From Scientific American