An instrument larger than a Galilean telescope for viewing distant objects, providing a relatively wide field of view, an inverted image that can be projected, and more ocular relief. It is used in astronomical observations and consists of a positive or convergent lens (convex) at the point where parallel light rays converge, an additional eyepiece to right the image, and an eyepiece. The telescope is the basis for the modern refractive telescope.
Also Known As
- Astronomical Telescope