How do you collimate a Maksutov Cassegrain telescope?

Take your telescope out at dusk and let it acclimate to the out- side temperature; this usually takes 30-60 minutes. When it is dark, point the telescope upwards at a bright star and accurately center it in the eyepiece’s field of view. Slowly de-focus the image with the focusing knob.

What is Newtonian refractor?

For a given aperture, Newtonian reflectors are generally the least expensive telescope because, unlike the lenses of a refractor, only one surface of a mirror needs careful figuring and polishing. And since no light passes through a mirror, less expensive glass is used.

How do you clean a Cassegrain telescope?

For basic cleaning:

1. Use compressed gas or compressed air to blow off loose dust and large particles.
2. Use a cleaning solution to gently lift off any remaining dirt or smudges.
3. Use the solution to wet soft, plain tissue or cotton balls for larger optical surfaces or cotton swabs for small parts like eyepiece lenses.

What is a 150mm aperture Maksutov telescope?

A 150mm aperture Maksutov–Cassegrain telescope. The Maksutov (also called a “Mak”) is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly “spherically symmetrical”.

What is a Maksutov sub-aperture corrector?

Sub-aperture corrector Maksutovs are currently manufactured by Vixen telescopes, their VMC (Vixen Maksutov Cassegrain) models. Maksutovs optics can be used in Newtonian configurations that have minimal aberration over a wide field of view, with one-fourth the coma of a similar standard Newtonian and one-half the coma of a Schmidt-Newtonian.

What is a Maksutov-Cassegrain telescope?

Jump to navigation Jump to search. A 150mm aperture Maksutov–Cassegrain telescope. The Maksutov (also called a “Mak”) is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly “spherically symmetrical”.

What is the purpose of the Maksutov design?

The design corrects the problems of off-axis aberrations such as coma found in reflecting telescopes while also correcting chromatic aberration. It was patented in 1941 by Russian optician Dmitri Dmitrievich Maksutov.