astronomical telescope

noun

1. a telescope having an objective with a long focal length and an eyepiece with a short focal length, usually used for observing celestial bodies.

astronomical telescope

noun

1. See equatorial mounting, Newtonian telescope, Cassegrain telescope
   any telescope designed and mounted for use in astronomy. Such telescopes usually form inverted images See Cassegrain telescope Newtonian telescope equatorial mounting

Word History and Origins

Origin of astronomical telescope¹

First recorded in 1880–85

Example Sentences

It was almost the perfect place for an astronomical telescope.

From Project Gutenberg

For firing, these mortars of course are pointed at a very high angle, almost like an astronomical telescope.

From Project Gutenberg

One word about the inversion of objects by the astronomical telescope.

From Project Gutenberg

I should like to own a big astronomical telescope and a twenty-four-tune music-box.

From Project Gutenberg

When an object is viewed through the type of astronomical telescope ordinarily in use, it is seen upside down.

From Project Gutenberg