Schmidt-Cassegrain telescope
A Schmidt-Cassegrain Telescope, invented by Bernhard Schmidt, is a catadioptric telescope.
View the secondary mirror holder from the corrector plate end of the Schmidt-Cassegrain Telescope. The collimation screw nearest the ground is labeled "A". Screws "B" and "C" are as shown in the center of the diagram above.
Cassegrain telescope A type of reflecting telescope in which incoming light hits the primary mirror and is then reflected upward toward the prime focus, where a secondary mirror reflects the light back down through a small hole in the main mirror, ...
Cassegrain Telescope
A reflecting telescope in which the secondary mirror reflects light back down the tube through a hole in the center of the primary mirror
Celestial Equator ...
Schmidt-Cassegrain Telescopes. Schmidt-Cassegrains are usually a compromise between a planetary type and a deep-sky system, having f/10 or f/11 focal ratios. This type of telescope is extremely compact, easy to use, light in weight and portable.
Cassegrain telescope
A type of reflecting telescope whose eyepiece is located behind the primary mirror. The primary mirror is cast with a hole in the center.
Cassegrain Telescope, Gregorian Telescope, Newtonian Telescope, Reflecting Telescope, Refracting Telescope, Ritchey-Chrétien Telescope, Schmidt Camera ...
CASSEGRAIN TELESCOPE
A Cassegrain telescope is a wide-angle reflecting telescope with a concave mirror that receives light and focuses an image.
Schmidt-Cassegrain telescope
Maksutov telescope (Cassegrains)
Schiefspiegler ...
MAKSUTOV-CASSEGRAIN TELESCOPE
A Maksutov-Cassegrain telescope (MCT) is a wide-angle reflecting telescope with a curved correcting lens (called a Meniscus Corrector Shell.) that minimizes spherical aberration and a concave mirror that receives light ...
Cassegrain (NASA SP-7, 1965) = Cassegrain telescope. Cassegrain telescope (NASA SP-7, 1965) A reflecting telescope in which a small hyperboloidal mirror reflects the convergent beam from the paraboloidal primary mirror through a hole in ...
Schmidt-Cassegrain telescope
Schönberg-Chandrasekhar limit
Schwarzschild radius
Schwassmann-Wachmann 1, Comet 29P/
scintillation
S-class asteroid
18 Scorpii
Scorpius (constellation)
Scorpius X-1 (3U 1617-15)
Scorpius-Centaurus Association ...
8 cm Cassegrain telescope and three interferometers, a far-infrared, a mid-infrared, and a reference interferometer. The far-infrared interferometer covers a spectral range from 17-1000 micrometers (10-600/cm).
I managed to save enough money and purchased a 10-inch Meade Schmidt Cassegrain telescope with a motorized base. I was totally blown away by the improvement in picture quality with the new instrument.
Here's the stuff we found when you searched for "Cassegrain telescope"
radio telescope
Buying Your First Telescope
Large Binocular Telescope Observatory
Allen Telescope Array
Dover Heights Radio Telescope
Hale Telescope
Sky & Telescope ...
Here's an example: say you have a 25mm Plossl eyepiece that has a 50 degree apparent field of view and your telescope is an 8-inch f/10 Schmidt-Cassegrain telescope, with a focal length of 2000 mm.
The third type that I mentioned was the Schmidt Cassegrain telescope. It has grown in popularity because it combines the best of a reflector and refractor.
TRACE's main instrument is a Cassegrain telescope which is 30 cm. in diameter and 160 cm. long. It has an 8.66 m. focal length.
In the classical Cassegrain telescope, the primary mirror is paraboloid shaped. This brings the light of any object in the field of the telescope to a focus near the top end of the tube, called the prime focus.
8 cm aperture Cassegrain telescope equipped with dual interferometers to measure infrared emission from atmospheres, rings, and surfaces.
Many of these are larger than the field of view of the 8" f/10 Schmidt Cassegrain telescope I currently use. A short focal ratio Newtonian like a 10" f/4.
The most common examples of these are the Schmidt-Cassegrain telescopes, whose "lens" is an aspheric corrector plate, and the Maksutov-Cassegrain telescopes, whose "lens" is a deeply curved meniscus.
66 m focal length Cassegrain telescope with a 1200Ã-1200px CCD detector. The timing of the launch was planned to coincide with the rising phase of the solar maximum.
This is a CCD image of comet 1993a Mueller, taken on October 6, 1993 with a 288mm f/5.2 Schmidt-Cassegrain telescope. The comet has a coma diameter of 3' and a fan-shaped tail, up to 7' long. (Courtesy Erich Meyer and Herbert Raab, Austria) ...
Heyn can often be found loitering on street corners in downtown Baltimore at night -- along with his Meade 8-inch Schmidt-Cassegrain telescope, which he encourages passers-by to look through. He welcomes readers' reports on their astrophoto efforts.
The Cassegrain telescope is similar but produces an inverted image. [A84]
(b) An early type of reflecting telescope similar to the Cassegrainian arrangement, except that both mirrors were converging. See also reflector. [DC99]
GRG ...
Schmidt-Cassegrain focus: The optical design of a reflecting telescope in which a thin correcting lens is placed at the top of a Cassegrain telescope.
Schwarzschild radius (RS): The radius of the event horizon around a black hole.
a telescope that combines the primary mirror of a reflector with a lens placed in front of the mirror that corrects for aberrations; most catadioptric telescopes for amateurs are Schmidt-Cassegrain telescopes
celestial pole ...
Like all Cassegrain telescopes the Maksutov has the advantage to being able to have a longer focal ratio than a Newtonian reflector of equal optical size but at the expence of a more complicated optical train.
Ramsden (Phil. Trans. vol. xix. p. 419) suggested the division of the small speculum of a Cassegrain telescope and the production of double image by micrometric rotation of the semispecula in the plane passing through their axis. Brewster (Ency.
 See also: Telescope, Field, Light, Sky, Focus
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