Dobsonian telescope

[ dob-soh-nee-uhn ]

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.

Origin of Dobsonian telescope

1
After John Dobson, U.S. astronomer, its inventor; see -ian

Words Nearby Dobsonian telescope

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023